?> echo "䖭⾡ݭ⊩ᖙ乏ᇚ php.ini Ёⱘ shor_open_tags 䆒㕂Ў On ᠡৃҹՓ⫼"; echo "߽⫼ⱘ PHP ݭ⊩";

echo "߽⫼ script ⱘݭ⊩";

"; echo fread($fp,32); $fp = fopen($filename,"rb"); $filename = "4.txt"; ⫼ file_put_contents ߑ᭄ݭܹ᭛ӊ˖"; readfile($filepath); fclose($fopen); fwrite($fopen,$str); $fopen = fopen($filepath,'wb') or die('᭛ӊϡᄬ೼'); echo "⫼ fwrite ߑ᭄ݭܹ᭛ӊ˖"; $str = "ℸᚙৃᕙ៤䗑ᖚ াᰃᔧᯊᏆᚬ✊
"; $filepath = "05.txt"; void closedir(resource handle) ఼Ϟ偠䆕ֵᙃ᳝ᬜᗻⱘ᳔དᮍ⊩ህᰃᡞ㸼ऩֵᙃথ㒭ᔧࠡ义䖯㸠偠䆕ˈ㗠ϡᰃ䇗ࠄ݊Ҫ义䴶 བᵰ⫼᠋䕧ܹⱘֵᙃ䳔㽕ᄬ䖯᭄᥂ᑧˈ䙷МԴᖙ乏㗗㰥೼᳡ࡵ఼ッ䖯㸠᳝ᬜᗻ偠䆕DŽ೼᳡ࡵ ᇥ᳡ࡵ఼ⱘϟ䕑य़࡯DŽޣ⌣㾜఼䖯㸠ֵᙃⱘ᳝ᬜᗻ偠䆕ৃҹᦤ催ᬜ⥛ᑊ ⫼᠋䕧ܹⱘֵᙃᑨ䆹ሑৃ㛑ⱘ䗮䖛ᅶ᠋ッ㛮ᴀ⿟ᑣ˄བ˖JavaScript˅⌣㾜఼Ϟ偠䆕˗䗮䖛 2. 㸼ऩ᳝ᬜᗻ偠䆕[Form Validation] PHP $_GET ੠ $_POST ব䞣ᇚ೼ϟϔゴ԰݋ԧ䆆㾷DŽ You are 28 years old. Welcome John. Ϟ䗄㛮ᴀᇚ䕧ߎϟ䴶䖭↉㒧ᵰ˖ You are years old. Welcome .
“welcome.php”᭛ӊབϟ᠔⼎˖ ݭᅠ↩ᑊ⚍ߏᦤѸᣝ䪂ᯊˈ㸼ऩⱘ᭄᥂ᇚ㹿থ䗕㟇“welcome.php”᭛ӊDŽ Ϟ䗄 HTML 义䴶ࣙ৿њϸϾ䕧ܹḚ[input field]੠ϔϾᦤѸ[submit]ᣝ䪂DŽᔧ⫼᠋ᇚֵᙃ฿ Age: Name:

㸼ऩВ՟˖ ㋴䛑ৃҹ㞾ࡼⱘ⫼Ѣ PHP 㛮ᴀ˖ܗ ೼៥Ӏ໘⧚ HTML 㸼ऩ੠ PHP 㸼ऩᯊˈ៥Ӏ㽕䆄ԣⱘ䞡㽕ϔ⚍ᰃ˖HTML 义䴶ЁⱘӏԩϔϾ㸼ऩ 1. PHP 㸼ऩ᪡԰ $_GET ੠ $_POST ব䞣ᰃ⫼ᴹ㦋প㸼ऩЁⱘֵᙃⱘˈ↨བ⫼᠋䕧ܹⱘֵᙃDŽ 14.1 㸼ऩ᪡԰ 䇒ූヨ䆄 ㄀कಯ໽˖PHP 㸼ऩ᪡԰ ㄀ 118 义 PHP $_REQUEST ব䞣ࣙ৿$_GET, $_POST, and $_COOKIE ⱘݙᆍDŽ 4. $_REQUEST ব䞣 ᄫヺDŽ ⊼ᛣ˖བᵰ䳔㽕থ䗕ⱘব䞣ؐ䖛໻ˈHTTP GET ᮍ⊩֓ϡ䗖⫼DŽথ䗕ⱘֵᙃ䞣ϡ㛑䍙䖛 100 Ͼ ᳝⫼DŽ ϟ䴲ᐌމᙃӮ೼ URL ഄഔᷣݙᰒ⼎ˈ᠔ҹ៥Ӏৃҹᡞᅗ԰Ўᷛㅒᬒܹᬊ㮣།ݙDŽ䖭೼ᕜ໮ᚙ Դথ䗕ⱘֵᙃࣙ৿ᆚⷕ៪ᰃ݊ҪϔѯᬣᛳֵᙃᯊˈህϡৃҹݡՓ⫼䖭⾡ᮍ⊩DŽ಴Ў᠔᳝ⱘֵ 㽕⚍˖ᔧՓ⫼“$_GET”ব䞣ᯊˈ᠔᳝ⱘব䞣ৡ੠ব䞣ؐ䛑Ӯᰒ⼎೼ URL ഄഔᷣݙ˗᠔ҹˈᔧ ЎҔМ㽕Փ⫼“$_GET”˛ old! Welcome .
You are years ݙⱘৡ⿄ᇚӮ㞾ࡼ԰Ў“$_GET”᭄㒘Ёⱘ ID ݇䬂䆡˅˖ “welcome.php”᭛ӊৃҹՓ⫼“$_GET”ব䞣ᴹ㦋প㸼ऩ᭄᥂˄⊼ᛣ˖㸼ऩᷣ[form field] ᔧ⫼᠋⚍ߏĀᦤѸ Submit”ᣝ䪂ৢˈURL ⱘᮍᓣᰒ⼎ Age: Name:

Ḝ՟ [character]˅DŽ ⼎೼⌣㾜఼ⱘഄഔᷣ䞠˅ˈᑊϨᅗ᳝䭓ᑺ䰤ࠊ˄ֵᙃⱘᘏ䭓ᑺϡ㛑䍙䖛 100 Ͼᄫヺ $_GET ব䞣Փ⫼“method=get”ᴹ㦋প㸼ऩֵᙃDŽ䗮䖛 GET ᮍ⊩থ䗕ⱘֵᙃᰃৃ㾕ⱘ˄ᅗᇚᰒ 䗕ⱘˈϨ䛑ৃҹ߽⫼˅DŽ $_GET ব䞣ᰃϔϾࣙ৿ৡ⿄[name]੠ؐ[value]ⱘ᭄㒘˄䖭ѯৡ⿄੠ؐᰃ䗮䖛 HTTP GET ᮍ⊩থ $_GET ব䞣 3. PHP $_GET ব䞣ᰃ䗮䖛 get ᮍ⊩Ң㸼ऩЁ㦋পĀؐāⱘDŽ ᕫ៥Ӏ᳈ᆍᯧথ⦄ᄬ೼ⱘ䫭䇃ֵᙃDŽ 䇒ූヨ䆄 䖯㸠偠䆕DŽ䗮䖛Ϟ䗄ᮍ⊩ˈབᵰ㸼ऩᄬ೼䫭䇃ˈ⫼᠋ৃҹⳈ᥹೼ᔧࠡ义㦋প䫭䇃ֵᙃDŽ䖭Փ ㄀ 119 义 ˛6. ЎҔМ㽕Փ⫼$_POST You are years old! Welcome .
ݙⱘৡ⿄ᇚӮ㞾ࡼ԰Ў“$_POST”᭄㒘Ёⱘ ID ݇䬂䆡˅˖ “welcome.php”᭛ӊৃҹՓ⫼“$_POST”ব䞣ᴹ㦋প㸼ऩ᭄᥂˄⊼ᛣ˖㸼ऩᷣ[form field] ᔧ⫼᠋⚍ߏĀᦤѸ Submit”ᣝ䪂ৢˈURL ЁϡӮࣙ৿ӏԩ㸼ऩ᭄᥂

Ḝ՟ ᑊϨᅗ≵᳝݇Ѣֵᙃ䭓ᑺⱘ䰤ࠊDŽ $_POST ব䞣Փ⫼“method=POST”ᴹ㦋প㸼ऩֵᙃDŽ䗮䖛 POST ᮍ⊩থ䗕ⱘֵᙃᰃϡৃ㾕ⱘˈ থ䗕ⱘˈϨ䛑ৃҹ߽⫼˅ $_POST ব䞣ᰃϔϾࣙ৿ৡ⿄[name]ԩؐ[value]ⱘ᭄㒘˄䖭ѯৡ⿄੠ؐᰃ䗮䖛 HTTP POST ᮍ⊩ 5. $_POST ব䞣 PHP $_POST ব䞣ⱘ԰⫼ᰃ˖㦋প method = “post”ᮍ⊩থ䗕ⱘ㸼ऩব䞣DŽ $_REQUEST["age"]; ?> years old! Welcome .
You are years old Welcome .
Ḝ՟ PHP $_REQUEST ব䞣ৃҹ⫼ᴹ㦋প䗮䖛“GET”੠“POST”䖭ϸ⾡ᮍ⊩থ䗕ⱘ㸼ऩ᭄᥂DŽ PHP $_REQUEST ব䞣ࣙ৿$_GET, $_POST, and $_COOKIE ⱘݙᆍ 7. $_REQUEST ব䞣 ᄬ೼ᬊ㮣།䞠DŽټ✊㗠ˈ಴Ўব䞣ϡ㛑೼ URL Ёᰒ⼎ߎᴹˈ᠔ҹгϡৃ㛑ᡞ䖭Ͼ义䴶԰Ўᷛㅒ ব䞣ⱘ໻ᇣ≵᳝䰤ࠊ 䇒ූヨ䆄 䗮䖛 HTTP POST থ䗕ⱘব䞣ϡӮ೼ URL Ёᰒ⼎ߎᴹ ㄀ 121 义 ˖"upload_file.php"᭛ӊࣙ৿њᅲ⦄᭛ӊϞӴࡳ㛑ⱘҷⷕˈ݋ԧབϟ ᓎゟϔϾϞӴ㛮ᴀ⿟ᑣ[Upload Script] ⱘ⫼᠋ϞӴҪӀⱘ᭛ӊDŽ 䆌៥Ӏֵӏܕᄬ೼ⴔᎼ໻ⱘᅝܼ䱤ᙷDŽ᠔ҹ៥Ӏᑨ䆹া⫣خ䆌⫼᠋ϞӴ᭛ӊ䖭ḋⱘܕ˖⊼ᛣ ᄤᴹ䇈ˈᔧ៥Ӏ⌣㾜㔥义ᯊˈ೼䕧ܹḚⱘᮕ䖍Ӯ᳝ϔϾ browse ᣝ䪂DŽ x ᷛㅒⱘ type="file"ሲᗻᣛᅮњ䕧ֵܹᙃ[input]ᖙ乏ࣙ৿೼᭛ӊݙDŽВϾ՟ "multipart/form-data"ˈབ˖ϞӴ᭛ӊⱘݙᆍDŽ [content-type]˗ᔧ㸼ऩ㽕∖Փ⫼Ѡ䖯ࠊ᭄᥂ᯊˈ៥ӀՓ⫼ x ᷛㅒЁⱘ enctype ሲᗻᣛᅮњᔧᦤѸ㸼ऩᯊˈ䆹Փ⫼ᗢḋⱘݙᆍ㉏ൟ Ϟ䗄 HTML 㸼ऩⱘ⊼ᛣ⚍˖
Filename: enctype="multipart/form-data">

ⳟϔϟՓ⫼ HTML кݭⱘ᭛ӊϞӴ㸼ऩⱘ݋ԧݭ⊩˖ 㒭⫼᠋ᦤկϔϾ㞾㸠ϞӴ᭛ӊⱘ㸼ऩᰃᕜ᳝ᖙ㽕ⱘDŽ ߯ᓎϔϾ᭛ӊϞӴⱘ㸼ऩ ៥Ӏৃҹ䗮䖛 PHP ᡞ᭛ӊϞӴࠄ᳡ࡵ఼DŽ 䇒ූヨ䆄 ㄀कѨ໽˖PHP ⱘ᭛ӊϞӴ ㄀ 122 义 } ((&& ($_FILES["file"]["size"] < 20000 || ($_FILES["file"]["type"] == "image/jpeg") if (($_FILES["file"]["type"] == "image/gif") } echo "Stored in: " . $_FILES["file"]["tmp_name"]; echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb
"; echo "Type: " . $_FILES["file"]["type"] . "
"; echo "Upload: " . $_FILES["file"]["name"] . "
"; { else } echo "Error: " . $_FILES["file"]["error"] . "
"; { if ($_FILES["file"]["error"] > 0) 䇒ූヨ䆄 "; echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb
"; echo "Type: " . $_FILES["file"]["type"] . "
"; echo "Upload: " . $_FILES["file"]["name"] . "
"; { else } echo "Return Code: " . $_FILES["file"]["error"] . "
"; { if ($_FILES["file"]["error"] > 0) { && ($_FILES["file"]["size"] < 20000)) || ($_FILES["file"]["type"] == "image/jpeg") if (($_FILES["file"]["type"] == "image/gif") } echo "Invalid file"; { else } } echo "Stored in: " . $_FILES["file"]["tmp_name"]; echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb
"; echo "Type: " . $_FILES["file"]["type"] . "
"; echo "Upload: " . $_FILES["file"]["name"] . "
"; { else } echo "Error: " . $_FILES["file"]["error"] . "
"; { 䇒ූヨ䆄 if ($_FILES["file"]["error"] > 0) ㄀ 124 义 །ݙDŽ Ϟ䗄㛮ᴀẔᶹњᣛᅮⱘ᭛ӊᰃ৺Ꮖ㒣ᄬ೼˗བᵰϡᄬ೼ˈҪᇚᡞ᭛ӊ໡ࠊࠄ䖭Ͼᣛᅮⱘ᭛ӊ ?> } echo "Invalid file"; { else } } } echo "Stored in: " . "upload/" . $_FILES["file"]["name"]; "upload/" . $_FILES["file"]["name"]); move_uploaded_file($_FILES["file"]["tmp_name"], { else } echo $_FILES["file"]["name"] . " already exists. "; 䇒ූヨ䆄 { ㄀ 125 义 ⌣㾜 䆒㕂ᅠ↩ৃҹϞӴࠄ㔥ϞњDŽ $cfg['DefaultLang'] = 'zh'; 䖬᳝䆒 ህ䆒㕂ϔϟ˅ $cfg['Servers'][$i]['only_db'] = ''; // If set to a db-name, only˄Դা᳝ϔϾ᭄᥂ 㞾Ꮕᴎ䞠ϡ⫼䆒 $cfg['Servers'][$i]['password'] = ''; // MySQL password (only needed Ϟ䆒Դⱘ ftp ⫼᠋ৡ˅ $cfg['Servers'][$i]['user'] = 'root'; // MySQL user˄⫼᠋ৡˈ㞾Ꮕᴎ䞠⫼ rootˈ೼㔥 ೼㞾Ꮕⱘᴎᄤ䞠䇗䆩⫼ configˈབᵰ೼㔥Ϟ⫼ cookieDŽ or cookie based)? $cfg['Servers'][$i]['auth_type'] = 'config'; // Authentication method (config, http $cfg['Servers'][$i]['host'] = 'localhost';˄䗮ᐌ⫼咬䅸ˈг᳝՟໪˅ 䖬᳝ϟ䴶ⱘ བ˖$cfg['PmaAbsoluteUri'] = 'http://your.domain.com/phpmyadmin/'; ׂᬍԴᇚϞӴࠄぎ䯈ⱘ phpMyAdmin ⱘ㔥ഔ ᡒࠄ $cfg['PmaAbsoluteUri'] libraries/config.default.php[/COLOR]) ᡒࠄⳂᔩ䞠ⱘ config.inc.php ᭛ӊˈᠧᓔ (⊼˖ᮄ⠜ᴀⱘ phpmyadmin Ў 㾷य़ৢᕫࠄϔϾ phpMyAdmin ⱘⳂᔩ˄Դৃҹᬍৡ˅ ϟ䕑ϔӑ᳔ᮄ⠜ⱘ phpMyAdmin MYSQL ㅵ⧚఼ܜ PHPMYADMIN ᅝ㺙೒㾷ᬭ⿟ ᠔ҹབᵰ≵᳝ড়䗖ⱘ䆓䯂ᴗ䰤ˈ݊ᅗ⫼᠋᳝ৃ㛑ᤳᆇࠄԴⱘ SQL ᭄᥂DŽ ⾡ MySQL ᭄᥂ᑧࠡৄⱘ෎Ѣ PHP ⱘᎹ݋DŽPhpMyAdmin ⱘ㔎⚍ᰃᖙ乏ᅝ㺙೼Դⱘ Web ᳡ࡵ఼Ёˈ ᔧࠡߎ⦄ᕜ໮ GUI MySQL ᅶ᠋⿟ᑣˈ݊Ё᳔Ўߎ㡆ⱘᰃ෎Ѣ Web ⱘ phpMyAdmin Ꮉ݋DŽ䖭ᰃϔ 㸼Ё᭄᥂ⱘ䇏পህӮⳌᔧೄ䲒DŽ MySQL ⶹ䆚䴲ᐌ❳ᙝˈᇍ SQL 䇁㿔гᰃৠḋⱘ䘧⧚DŽϡҙབℸˈབᵰ᭄᥂ᑧⱘ䆓䯂䞣ᕜ໻ˈ߫ བᵰՓ⫼ড়䗖ⱘᎹ݋ˈMySQL ᭄᥂ᑧⱘㅵ⧚ህӮЎᕫⳌᔧㅔऩDŽᑨ⫼ MySQL ੑҸ㸠ᮍᓣ䳔㽕ᇍ 䇒ූヨ䆄 ㄀क݁໽˖MYSQL 䚼ߚ ㄀ 126 义 ㄀ 127 义 䇒ූヨ䆄 [URL="http://your.domain.com/phpmyadmin/"]http://your.domain.com/phpmyadmin/[/UR L] ᔧ✊Դ䆒㕂ϡৠህ⫼䙷Ͼ㔥ഔDŽ བᵰ䆒㕂њ cookie˄ⳟϞ䴶˅ህӮ᳝ҹϟⱘⱏ䰚にষ ⱏ䰚ৢ៪≵᳝䆒㕂 cookie ህৃҹ䖯ܹ phpmyadmin ⱘЏ义䴶 ೼Ꮊ䖍䗝ᢽϔϾ㸼˄བ cdb_members˅ˈৃҹⳟࠄҹϟ ে䖍ⱘにষᢝϟˈⳟࠄ 䖯ܹབ೒ Դгৃҹ೼䗝ᢽ᭄᥂៪㸼ৢˈ⚍ߏ SQL ᣝ䳔㽕฿ݭ བ咬䅸ⱘ๲ࡴϔϾᄫ↉ˈ⚍ߏᓔྟˈⳟ Դৃҹϔ⃵๲ࡴ໮Ͼᄫ↉ˈгৃҹ䗝ᢽ๲ࡴⱘᄫ↉೼ાϾᄫ↉ⱘৢ䴶ㄝ ⊼ᛣ㑶㡆೜ⴔⱘˈህᰃ๲ࡴᄫ↉ 䇒ූヨ䆄 ㄀ 128 义 ㄀ 129 义 䇒ූヨ䆄 䖤㸠 mysql 䇁হᴹ๲ࡴ៪᪡԰ mysqlDŽ ϟ䴶䆆໛ӑ 䗝ᢽ᭄᥂ৢˈ⚍ߏ䕧ߎབ೒ 䗝ᢽ㽕໛ӑⱘ㸼˄ৃҹܜ䗝ᢽ㄀ϔϾˈ✊ৢᣝⴔ shift 䬂ᣝ᳔ৢϔϾˈህৃҹ䗝ᢽҢ㄀ϔϾ ࠄ᳔ৢϔϾⱘ㸼ˈ៪ᣝ alt 䗝䱣ᛣϔϾ˅ བ೒ ㄀ 130 义 䇒ූヨ䆄 ✊ৢ⚍ߏᓔྟDŽ ݊Ҫⱘࡳ㛑໻ᆊৃҹ❳ᙝϔϟDŽЁ᭛⬠䴶ᑨ䆹ᕜᆍᯧᯢⱑⱘ ⊼˖$cfg['blowfish_secret'] = ''; ᴀᴎⱘ䆱ϡ䳔㽕䆒㕂ˈԚᰃ㔥㒰ⱘ䆱䳔㽕䆒㕂៤ cookie˖ $cfg['blowfish_secret'] = 'cookie'; +---------------------+ mytables +---------------------+ Tables in menagerie +---------------------+ mysql> SHOW TABLES; ⱘ㒧ᵰˈ⫼ SHOW TABLES ᰒ⼎᭄᥂ᑧЁ᳝ાѯ㸼˖خ߯ᓎњϔϾ㸼ৢˈ៥Ӏৃҹⳟⳟ߮ᠡ birth ߫߭Փ⫼ DATE ᭄᥂㉏ൟDŽ ᗻ߿া䳔ϔϾᄫヺህৃҹ㸼⼎˖"m"៪"f"ˈ಴ℸ䗝⫼ CHAR(1);  ࠄ 255 ⱘӏԩ䭓ᑺˈབᵰҹৢ䳔㽕ᬍবᅗⱘᄫ䭓ˈৃҹՓ⫼ ALTER TABLE 䇁হDŽ˅; ⬅Ѣ nameǃbirthadd ⱘ߫ؐᰃব࣪ⱘˈ಴ℸ䗝ᢽ VARCHARˈ݊䭓ᑺϡϔᅮᰃ 20DŽৃҹ䗝ᢽҢ Query OK, 0 rows affected (0.00 sec) -> birth DATE, birthaddr VARCHAR(20)); mysql> CREATE TABLE mytable (name VARCHAR(20), sex CHAR(1), ៥Ӏ㽕ᓎゟϔϾԴ݀ৌਬᎹⱘ⫳᮹㸼ˈ㸼ⱘݙᆍࣙ৿ਬᎹྦྷৡǃᗻ߿ǃߎ⫳᮹ᳳǃߎ⫳ජᏖDŽ 䇈ᯢ߮ᠡᓎゟⱘ᭄᥂ᑧЁ䖬≵᭄᳝᥂ᑧ㸼DŽϟ䴶ᴹ߯ᓎϔϾ᭄᥂ᑧ㸼 mytable: Empty set (0.00 sec) mysql> SHOW TABLES; ⳟ⦄೼Դⱘ᭄᥂ᑧЁᄬ೼ҔМ㸼˖ܜ佪 ǃ߯ᓎϔϾ᭄᥂ᑧ㸼 ℸᯊԴᏆ㒣䖯ܹԴ߮ᠡ᠔ᓎゟⱘ᭄᥂ᑧ abccs. Database changed mysql> USE abccs ǃ䗝ᢽԴ᠔߯ᓎⱘ᭄᥂ᑧ ⊼ᛣϡৠ᪡԰㋏㒳ᇍ໻ᇣݭⱘᬣᛳDŽ mysql> CREATE DATABASE abccs; ǃ߯ᓎϔϾ᭄᥂ᑧ abccs 3 rows in set (0.00 sec) +----------+ test mysql +----------+ Database +----------+ mysql> SHOW DATABASES; ǃՓ⫼ SHOW 䇁হᡒߎ೼᳡ࡵ఼Ϟᔧࠡᄬ೼ҔМ᭄᥂ᑧ˖ 䇒ූヨ䆄 њ㾷њϔѯ᳔෎ᴀⱘ᪡԰ੑҸৢˈ៥Ӏݡᴹᄺдབԩ߯ᓎϔϾ᭄᥂ᑧ੠᭄᥂ᑧ㸼DŽ ㄀ 131 义 ;mysql> select * from mytable ݡՓ⫼བϟੑҸⳟⳟᰃ৺Ꮖᇚ᭄᥂䕧ܹࠄ᭄᥂ᑧ㸼Ё˖ mysql> LOAD DATA LOCAL INFILE "mytable.txt" INTO TABLE pet; Փ⫼ϟ䴶ੑҸᇚ᭛ᴀ᭛ӊ“mytable.txt”㺙䕑ࠄ mytable 㸼Ё: tom m 1970-09-02 usa mary f 1978-12-12 usa abccs f 1977-07-07 china CREATE TABLE 䇁হЁ߫ߎⱘ߫⃵ᑣ㒭ߎˈ՟བ˖ ߯ᓎϔϾ᭛ᴀ᭛ӊ“mysql.txt”ˈ↣㸠ࣙ৿ϔϾ䆄ᔩˈ⫼ᅮԡヺ(tab)ᡞؐߚᓔˈᑊϨҹ೼ བᵰϔᴵϔᴵഄ䕧ܹˈᕜ咏⚺DŽ៥Ӏৃҹ⫼᭛ᴀ᭛ӊⱘᮍᓣᇚ᠔᳝䆄ᔩࡴܹԴⱘ᭄᥂ᑧ㸼ЁDŽ ǃ⫼᭛ᴀᮍᓣᇚ᭄᥂㺙ܹϔϾ᭄᥂ᑧ㸼 ៥Ӏৃҹᣝℸᮍ⊩ϔᴵϔᴵഄᇚ᠔᳝ਬᎹⱘ䆄ᔩࡴܹࠄ㸼ЁDŽ ݡ⫼Ϟ䴶ⱘ SELECT ੑҸⳟⳟথ⫳њҔМব࣪DŽ Query OK, 1 row affected (0.05 sec) -> values ('abccs','f','1977-07-07','china'); mysql> insert into mytable ࡴܹϔᴵᮄ䆄ᔩ˖ 䖭䇈ᯢ߮ᠡ߯ᓎⱘ㸼䖬≵᳝䆄ᔩDŽ Empty set (0.00 sec) mysql> select * from mytable; SELECT ੑҸᴹᶹⳟ㸼Ёⱘ᭄᥂˖ ⫼ܜ៥Ӏ ǃᕔ㸼Ёࡴܹ䆄ᔩ 4 rows in set (0.00 sec) +-------------+-------------+------+-----+---------+-------+ deathaddr varchar(20) YES NULL birth date YES NULL sex char(1) YES NULL name varchar(20) YES NULL +-------------+-------------+------+-----+---------+-------+ Field Type Null Key Default Extra +-------------+-------------+------+-----+---------+-------+ mysql> DESCRIBE mytable; ǃᰒ⼎㸼ⱘ㒧ᵘ˖ 䇒ූヨ䆄 ㄀ 132 义 abccs f 1977-07-07 china +--------+------+------------+------------+ name sex birth birthaddr +--------+------+------------+------------+ mysql> SELECT * FROM mytable WHERE sex = "f" AND birthaddr = "china"; Ϟ䴶 WHERE ⱘখ᭄ᣛᅮњẔ㋶ᴵӊDŽ៥Ӏ䖬ৃҹ⫼㒘ড়ᴵӊᴹ䖯㸠ᶹ䆶˖ 1 row in set (0.06 sec) +--------+------+------------+------------+ tomm 1973-09-02 usa +--------+------+------------+------------+ name sex birth birthaddr +--------+------+------------+------------+ mysql> select * from mytable where name = "tom"; Ϟ䴶ׂᬍњ tom ⱘߎ⫳᮹ᳳˈ៥Ӏৃҹ䗝ᢽ tom 䖭ϔ㸠ᴹⳟⳟᰃ৺Ꮖ㒣᳝њব࣪˖ ǃ䗝ᢽ⡍ᅮ㸠 ݡ⫼  Ёⱘ䇁হⳟⳟᰃ৺Ꮖ᳈ℷ䖛ᴹDŽ mysql> update mytable set birth = "1973-09-02" where name = "tom"; བ tom ⱘߎ⫳᮹ᳳ᳝䫭䇃ˈᑨ䆹ᰃ 1973ˉ09ˉ02ˈ߭ৃҹ⫼ update 䇁হᴹׂℷ˖؛ ˖ǃׂℷ䫭䇃䆄ᔩ 3 row in set (0.00 sec) +----------+------+------------+----------+ tom m 1970-09-02 usa mary f 1978-12-12 usa abccsf 1977-07-07 china +----------+------+------------+--------+ name sex birth birthaddr +----------+------+------------+----------+ mysql> select * from mytable; ǃᶹ䆶᠔᭄᳝᥂˖ ϟ䴶㒻㓁Փ⫼៥Ӏ೼Ϟ㆛᭛ゴЁ߯ᓎⱘ㸼 mytable˖ ҹࠡ᠔Փ⫼ⱘ“ * ”㸼⼎䗝ᢽ᠔᳝ⱘ߫DŽ ৃ䗝)SELECT Ẕ㋶݇䬂䆡 FROM 㹿Ẕ㋶ⱘ㸼 WHERE Ẕ㋶ᴵӊ select 䇁হḐᓣϔ㠀Ў˖ ᅲ䰙Ϟˈࠡ䴶៥ӀᏆ㒣⫼ࠄњ SELECT 䇁হˈᅗ⫼ᴹҢ᭄᥂ᑧ㸼ЁẔ㋶ֵᙃDŽ ǃҢ᭄᥂ᑧ㸼ЁẔ㋶ֵᙃ 䙷М៥ӀབԩҢ᭄᥂ᑧ㸼ЁẔ㋶᭄᥂ਸ਼˛ 䇒ූヨ䆄 Ϟ㆛៥ӀᄺӮњབԩ߯ᓎϔϾ᭄᥂ᑧ੠᭄᥂ᑧ㸼ˈᑊⶹ䘧བԩ৥᭄᥂ᑧ㸼Ё⏏ࡴ䆄ᔩDŽ ㄀ 133 义 +----------+ ;mysql> SELECT COUNT(*) FROM mytable COUNT()ߑ᭄⫼Ѣᇍ䴲 NULL 㒧ᵰⱘ䆄ᔩ䖯㸠䅵᭄˖ ᭄᥂ᑧ㒣ᐌ㽕㒳䅵ϔѯ᭄᥂ˈབ㸼ЁਬᎹⱘ᭄Ⳃˈ៥Ӏህ㽕⫼ࠄ㸠䅵᭄ߑ᭄ COUNT()DŽ ǃ㸠䅵᭄ 3 row in set (0.00 sec) +----------+------------+ tom 1973-09-02 abccs 1977-07-07 mary 1978-12-12 +----------+------------+ name birth +----------+------------+ mysql> SELECT name, birth FROM mytable ORDER BY birth DESC; ៥Ӏৃҹ⫼ DESC ᴹ䖯㸠䗚ᑣᥦᑣ˖ 3 row in set (0.00 sec) +----------+------------+ mary 1978-12-12 abccs 1977-07-07 tom 1973-09-02 +----------+------------+ name birth +----------+------------+ mysql> SELECT name, birth FROM mytable ORDER BY birth; ៥Ӏৃҹᇍ㸼Ёⱘ䆄ᔩᣝ⫳᮹໻ᇣ䖯㸠ᥦᑣ˖ ǃᇍ㸠䖯㸠ᥦᑣ myaql> select name,birth from mytable; བᵰᛇ߫ߎྦྷৡ੠ᗻ߿ϸ߫ˈ߭ৃҹ⫼䗫োᇚ݇䬂䆡 name ੠ birth ߚᓔ˖ 3 row in set (0.00 sec) +----------+ tom mary abccs +----------+ name +----------+ mysql> SELECT name FROM mytable; བԴᛇᶹⳟ㸼Ёⱘ᠔᳝Ҏⱘྦྷৡˈ߭ৃҹ䖭ḋ᪡԰˖؛ ǃ䗝ᢽ⡍ᅮ߫ 1 row in set (0.06 sec) 䇒ූヨ䆄 +--------+------+------------+------------+ ㄀ 134 义 writer title senddate +--------+-------+------------+ mysql> select * from title; ৥䆹㸼Ё฿ࡴ䆄ᔩˈ᳔ৢ㸼ⱘݙᆍབϟ˖ -> senddate date); -> title varchar(40) not null, mysql> create table title(writer varchar(20) not null, ǃ߯ᓎ㄀ѠϾ㸼 title˄ࣙᣀ԰㗙ǃ᭛ゴᷛ乬ǃথ㸼᮹ᳳ˅: +----------+------+------------+-----------+ tom m 1970-09-02 usa mary f 1978-12-12 usa abccsf 1977-07-07 china +----------+------+------------+-----------+ name sex birth birthaddr +----------+------+------------+-----------+ mysql> select * from mytable; ǃᶹⳟ㄀ϔϾ㸼 mytable ⱘݙᆍ˖ ϔϾ㸼ˈ䆹㸼⫼Ѣᦣ䗄ਬᎹ᠔থ㸼ⱘ᭛ゴˈݙᆍࣙᣀ԰㗙ྦྷৡǃ᭛ゴᷛ乬ǃথ㸼᮹ᳳDŽ 䴶ᓎゟⱘ㸼Ёࣙ৿њਬᎹⱘϔѯ෎ᴀֵᙃˈབྦྷৡǃᗻ߿ǃߎ⫳᮹ᳳǃߎ⫳ഄDŽ៥Ӏݡ߯ᓎ ೼ϔϾ᭄᥂ᑧЁˈৃ㛑ᄬ೼໮Ͼ㸼ˈ䖭ѯ㸼䛑ᰃⳌѦ݇㘨ⱘDŽ៥Ӏ㒻㓁Փ⫼ࠡ䴶ⱘ՟ᄤDŽࠡ ࠡ䴶៥Ӏ❳ᙝњ᭄᥂ᑧ੠᭄᥂ᑧ㸼ⱘ෎ᴀ᪡԰ˈ⦄೼៥Ӏݡᴹⳟⳟབԩ᪡԰໮Ͼ㸼DŽ ⊼ᛣ៥ӀՓ⫼њ GROUP BY ᇍ SEX 䖯㸠њߚ㒘DŽ 2 row in set (0.00 sec) +------+----------+ m1 f2 +------+----------+ sex COUNT(*) +------+----------+ mysql> SELECT sex, COUNT(*) FROM mytable GROUP BY sex; ਬᎹЁ⬋ཇ᭄䞣˖ 1 row in set (0.06 sec) +----------+ 3 +----------+ 䇒ූヨ䆄 COUNT(*) ㄀ 135 义 ˖”ᇚ abccs ⱘ single 䆄ᔩׂᬍЎ“y ǃׂᬍ䆄ᔩ mysql> alter table mytable add column single char(1); བ೼ࠡ䴶՟ᄤЁⱘ mytable 㸼Ё๲ࡴϔ߫㸼⼎ᰃ৺ऩ䑿 single: ǃ๲ࡴϔ߫˖ ᳝ᯊ៥Ӏ㽕ᇍ᭄᥂ᑧ㸼੠᭄᥂ᑧ䖯㸠ׂᬍ੠ߴ䰸ˈৃҹ⫼བϟᮍ⊩ᅲ⦄˖ +-------+--------+-----------+------------+ a2 abccs china 1977-07-07 +-------+--------+-----------+------------+ title writer birthaddr birth +-------+--------+-----------+------------+ -> where mytable.name=title.writer and title='a2'; mysql> select title,writer,birthaddr,birth from mytable,title ݡВϔϾ՟ᄤˈ⫼Ѣᶹ䆶᭛ゴ a2 ⱘ԰㗙ǃߎ⫳ഄ੠ߎ⫳᮹ᳳ˖ 㗠ϡᰃ writer ᯊˈህᖙ乏⫼ mytable.name ੠ title.name 㸼⼎ˈҹ⼎ऎ߿DŽ ⊼ᛣ˖བᵰ㄀ѠϾ㸼 title Ёⱘ writer ߫гপৡЎ name˄Ϣ mytable 㸼Ёⱘ name ߫Ⳍৠ˅ 䆶DŽᖙ乏㽕ᣛᅮϔϾ㸼Ёⱘ䆄ᔩབԩϢ݊ᅗ㸼Ёⱘ䆄ᔩ䖯㸠ऍ䜡DŽ Ϟ䴶՟ᄤЁˈ⬅Ѣ԰㗙ྦྷৡǃᗻ߿ǃ᭛ゴ䆄ᔩ೼ϸϾϡৠ㸼ݙˈ಴ℸᖙ乏Փ⫼㒘ড়ᴹ䖯㸠ᶹ +-------+------+-------+ abccs f a2 abccs f a1 +-------+------+-------+ name sex title +-------+------+-------+ -> WHERE name=writer AND name='abccs'; mysql> SELECT name,sex,title FROM mytable,title ՟བ៥Ӏ㽕ᶹ䆶԰㗙 abccs ⱘྦྷৡǃᗻ߿ǃ᭛ゴ˖ ⦄೼៥Ӏ᳝њϸϾ㸼: mytable ੠ titleDŽ߽⫼䖭ϸϾ㸼៥Ӏৃҹ䖯㸠㒘ড়ᶹ䆶˖ ǃ໮㸼ᶹ䆶 5 rows in set (0.00sec) +--------+-------+------------+ tom c2 1999-12-12 tom c1 1992-05-16 abccs a2 2000-12-04 mary b1 1998-03-21 abccs a1 2000-01-23 䇒ූヨ䆄 +--------+-------+------------+ ㄀ 136 义 +--------+-----------+------------+------+----------+ tom m 1970-09-02 usa NULL mary f 1978-12-12 usa NULL abccsf 1977-07-07 china y +----------+------+------------+-----------+--------+ name sex birth birthaddr single +----------+------+------------+-----------+--------+ mysql> select * from mytable; ݡᰒ⼎ϔϟ㒧ᵰ˖ DELETE Ң㸼Ёߴ䰸⒵䎇⬅ where 㒭ߎⱘᴵӊⱘϔᴵ䆄ᔩDŽ mysql> delete from mytable where name='abc'; ⫼བϟੑҸߴ䰸㸼Ёⱘϔᴵ䆄ᔩ˖ ǃߴ䰸䆄ᔩ +----------+------+------------+-----------+--------+ abc f 1966-08-17 china n tom m 1970-09-02 usa NULL mary f 1978-12-12 usa NULL abccsf 1977-07-07 china y +----------+------+------------+-----------+--------+ name sex birth birthaddr single +----------+------+------------+-----------+--------+ mysql> select * from mytable; ᶹⳟϔϟ˖ Query OK, 1 row affected (0.05 sec) -> values ('abc','f','1966-08-17','china','n'); mysql> insert into mytable ࠡ䴶Ꮖ㒣䆆䖛བԩ๲ࡴϔᴵ䆄ᔩˈЎ֓Ѣᶹⳟˈ䞡໡Ϣℸ˖ ǃ๲ࡴ䆄ᔩ +----------+------+------------+-----------+--------+ tom m 1970-09-02 usa NULL mary f 1978-12-12 usa NULL abccsf 1977-07-07 china y +----------+------+------------+-----------+--------+ name sex birth birthaddr single +----------+------+------------+-----------+--------+ mysql> select * from mytable; ⦄೼ᴹⳟⳟথ⫳њҔМ˖ 䇒ූヨ䆄 mysql> update mytable set single='y' where name='abccs'; ㄀ 137 义 mysql < mytest.sql > mytest.out ៥Ӏ䖬ৃҹᇚ㒧ᵰ䕧ߎࠄϔϾ᭛ӊЁ˖ mysql < mytest.sql more བᵰᛇⳟ㒧ᵰˈ㗠䕧ߎ㒧ᵰᕜ໮ˈ߭ৃҹ⫼䖭ḋⱘੑҸ˖ ೼ሣᐩϞӮᰒ⼎ᠻ㸠㒧ᵰDŽ d:mysqlbin mysql < mytest.sql ೼ DOS ϟ䖤㸠བϟੑҸ˖ select name,sex from mytable where name='abccs'; select * from mytable; use abccs; ᓎゟϔϾᡍ໘⧚᭛ӊ mytest.sql,ݙᆍབϟ˖ܜ佪 ǃ⫼ᡍ໘⧚ᮍᓣՓ⫼ MySQL: abccs.dbb ህᰃԴⱘ᭄᥂ᑧ abccs ⱘ໛ӑ᭛ӊDŽ mysqldump --opt abccs>abccs.dbb Փ⫼བϟੑҸᇍ᭄᥂ᑧ abccs 䖯㸠໛ӑ˖ d:mysqlbin mysql> quit 䗔ಲࠄ DOS˖ ǃ᭄᥂ᑧⱘ໛ӑ˖ ᇣᖗՓ⫼DŽ mysql> drop database ᭄᥂ᑧৡ; ǃ᭄᥂ᑧⱘߴ䰸˖ ৃҹߴ䰸ϔϾ៪໮Ͼ㸼ˈᇣᖗՓ⫼DŽ mysql> drop table ****(㸼  ⱘৡᄫˈ***㸼  ⱘৡᄫ; 䇒ූヨ䆄 ǃߴ䰸㸼˖ ㄀ 138 义 < ህᰒ⼎೼㔥义ЁDŽ ᔧ⌣㾜఼䕑ܹ㔥义 Body 䚼ߚⱘᯊ׭ˈህᠻ㸠݊Ёⱘ Javascript 䇁হˈᠻ㸠Пৢ䕧ߎⱘݙᆍ Javascript ೼П䯈 x ໪䚼.js ᭛ӊ䞠 x HTML 㔥义ⱘ䞠 x HTML 㔥义ⱘ䞠 Javascript ⿟ᑣৃҹᬒ೼˖ ҔМഄᮍᦦܹ JavaScript ᅗӀⱘⳌৠ⚍ˈ៥ᛇা᳝ৠᰃҹ Java ԰㓪⿟䇁㿔ϔ⚍њDŽ JavaScript ⑤ҷⷕDŽJavaScript ≵᳝⣀ゟⱘ䖤㸠にষˈ⌣㾜఼ᔧࠡにষህᰃᅗⱘ䖤㸠にষDŽ ḷЁˈ⌣㾜఼䇏পᅗӀⱘᯊ׭ᠡ䖯㸠㓪䆥ǃᠻ㸠ˈ᠔ҹ㛑ᶹⳟ HTML ⑤᭛ӊህ㛑ᶹⳟ ⱘ㛑࡯ህ↨䕗ᇣњDŽJavaScript ᰃϔ⾡Ā㛮ᴀā˄“Script”˅ˈᅗⳈ᥹ᡞҷⷕݭࠄ HTML ᭛ ՟њ˅DŽⳌ↨ПϟˈJavaScriptܜৃҹ䆓䯂 httpǃftp ㄝण䆂ˈ⫮㟇ৃҹ೼⬉㛥Ϟ⾡⮙↦˄Ꮖ᳝ Applet ᭛ӊ˄.class˅⫼ Notepad ᠧᓔ䯙䇏ˈḍᴀϡ㛑⧚㾷DŽJava Applet ⱘࡳ㛑ᕜᔎ໻ˈ 㓪䆥དⱘˈϔϾܜᰃጠ೼㔥义Ёˈ㗠জ᳝㞾Ꮕ⣀ゟⱘ䖤㸠にষⱘᇣ⿟ᑣDŽJava Applet ᰃ乘 Ꮕᔧ߱гᰃ䖭ḋDŽ݊ᅲᅗӀᰃᅠᅠܼܼϡৠⱘϸ⾡ϰ㽓DŽJavaˈܼ⿄ᑨ䆹ᰃ Java Appletˈ ᕜ໮Ҏⳟࠄ Java ੠ JavaScript 䛑᳝“Java”ಯϾᄫˈህҹЎᅗӀᰃৠϔḋϰ㽓ˈ䖲៥㞾 Java Ϣ JavaScript ᳝ҔМϡৠ 偠䆕DŽJavaScript ⱘ⡍⚍ᰃ᮴か᮴ሑⱘˈা㽕Դ᳝߯ᛣDŽ ᯊⱘẔᶹˈ᮴䳔⌾䌍ᯊ䯈Ѹ⬅ CGIेخ䯈DŽJavaScript 㛑ঞᯊડᑨ⫼᠋ⱘ᪡԰ˈᇍᦤѸ㸼ऩ ᇥϟ䕑ᯊޣˈJavaScript Փ㔥义๲ࡴѦࡼᗻDŽJavaScript Փ᳝㾘ᕟഄ䞡໡ⱘ HTML ᭛↉ㅔ࣪ JavaScript ᳝ҔМ⡍⚍ ㄀Ѡक໽˖JAVASCRIPT ෎⸔ ᓎ䆂೼Ё㑻ᅠ៤˅މǃ CMS ㋏㒳˄䲒ᑺ䕗催ˈḍ᥂ᄺਬᚙ ᓎ䆂೼Ё㑻ᅠ៤˅މǃ BBS ㋏㒳˄䲒ᑺ䕗催ˈḍ᥂ᄺਬᚙ ǃ ϾҎ BLOG ㋏㒳 ǃ ⬭㿔ᵓ㋏㒳˄ৃ䗝ߚ义˅ 乍Ⳃᅲ៬˄݋ԧ⬅ᥜ䇒ᬭᏜ䆺㒚ᣛᇐ˅ 䇒ූヨ䆄 ㄀कϗ໽ࠄ㄀कб໽ ㄀ 139 义 ˖">ˈ݊Ё src ⱘؐˈህᰃ Javascript ᠔೼᭛ӊⱘ᭛ӊ䏃ᕘDŽ⼎՟ҷⷕབϟ ೼ HTML 䞠ᓩ⫼໪䚼᭛ӊ䞠ⱘ Javascriptˈᑨ೼ Head 䞠ݭϔহ .... 䇒ූヨ䆄 ㄀ 141 义 ݊Ё“=”িĀ䌟ؐヺāˈᅗⱘ԰⫼ᰃᡞে䖍ⱘؐ䌟㒭Ꮊ䖍ⱘব䞣DŽϟϔ㡖ᇚ䅼䆎ࠄ㸼䖒ᓣDŽ ব䞣> = <㸼䖒ᓣ>; ব䞣ⱘ䌟ؐϔϾব䞣ໄᯢৢˈৃҹ೼ӏԩᯊ׭ᇍ݊䌟ؐDŽ䌟ؐⱘ䇁⊩ᰃ˖ 䖭ᇚᡞ anInteger ᅮНЎؐЎ 0 ⱘᭈൟDŽ var anInteger = 0; 䖭ᇚᡞ aString ᅮНЎ݋᳝ぎؐⱘᄫヺІൟব䞣DŽ var aString = ''; ࠄ˖خ⫣ؐⱘᮍ 㗠Ϩህㅫໄᯢњ㉏ൟˈ೼䖛⿟Ё䖬ৃҹ㒭ব䞣䌟ќ݊Ҫ㉏ൟⱘؐDŽໄᯢ㉏ൟৃҹ⫼䌟ќ߱ྟ ⬅Ѣ JavaScript ᇍ᭄᥂㉏ൟⱘ㽕∖ϡϹḐˈϔ㠀ᴹ䇈ˈໄᯢব䞣ⱘᯊ׭ϡ䳔㽕ໄᯢ㉏ൟDŽ false ᰃ JavaScript ⱘֱ⬭ᄫDŽᅗӀሲѢĀᐌ᭄āDŽ ā˅DŽtrue ੠؛Ꮧᇨൟ----ᐌ⫼Ѣ߸ᮁˈা᳝ϸϾؐৃ䗝˖true˄㸼Āⳳā˅੠ false˄㸼Ā ࠄᓩো໮䞡ጠ༫˖'Micro 䇈˖䖭䞠ᰃ\"JavaScript ᬭ⿟\"DŽ" 'خৃҹ \" ঠᓩোǃ\n ᤶ㸠ヺǃ\r ಲ䔺˄ҹϞা߫ߎᐌ⫼ⱘ䕀Нᄫヺ˅DŽѢᰃˈՓ⫼䕀Нᄫヺˈህ 䗨ˈ೼㽕⫼䖭ѯᄫヺᯊˈህ㽕Փ⫼Ā䕀НᄫヺāDŽ䕀Нᄫヺ⫼᭰ᴴ“\”ᓔ༈˖\' ऩᓩোǃ 䕀Нᄫヺ ⬅Ѣϔѯᄫヺ೼ሣᐩϞϡ㛑ᰒ⼎ˈ៪㗙 JavaScript 䇁⊩ϞᏆ㒣᳝њ⡍⅞⫼ ᛇݡ໮ጠϔѯˈԴ䳔㽕䕀Нᄫヺ˖ "JavaScript ᬭ⿟DŽ' ϡ䖛䎳䇁᭛ϡৠⱘᰃˈJavaScript Ёᓩোⱘጠ༫া㛑᳝ϔሖDŽབᵰ 䖭䞠ᰃ ᅮDŽ䎳䇁᭛ϔḋˈ⫼ાϾᓩোᓔྟህ⫼ાϾ㒧ᴳˈ㗠Ϩऩঠᓩোৃጠ༫Փ⫼˖އ ᄫヺІൟ---ᰃ⫼ᓩো“" "”ǃ“' '”ࣙ䍋ᴹⱘ䳊Ͼ㟇໮ϾᄫヺDŽ⫼ऩᓩো䖬ᰃঠᓩো⬅Դ ≵᳝䳔㽕ህϡ㽕⫼⍂⚍ൟDŽ ᄬᇣ᭄DŽ᳝䌘᭭ᰒ⼎ˈᶤѯᑇৄᇍ⍂⚍ൟব䞣ⱘᬃᣕϡ〇ᅮDŽټ⍂⚍ൟ----ेĀᅲൟāˈ㛑 ࡴ“0x”˖“0xEF”㸼⼎क݁䖯ࠊ᭄“EF”DŽ ܿ䖯ࠊ᭄ⱘ㸼⼎ᮍ⊩ᰃ೼᭄ᄫࠡࡴ“0”ˈབ“0123”㸼⼎ܿ䖯ࠊ᭄“123”DŽक݁䖯ࠊ߭ᰃ ᄬᭈ᭄DŽৃҹᰃℷᭈ᭄ǃǃ䋳ᭈ᭄ˈৃҹᰃक䖯ࠊǃܿ䖯ࠊǃक݁䖯ࠊDŽټᭈൟ------া㛑 ᭄᥂㉏ൟব䞣ৃҹ⫼ⱘ᭄᥂㉏ൟ᳝˖ ؐ!DŽব䞣!䌟ќ㞾ᅮⱘ߱ྟؐ߭㒭 ໛ݙᄬˈ㒭ᅗ䌟߱ྟؐ“null”DŽབᵰࡴϞ“= <ؐ>”ˈޚ!ব䞣ህᰃ“var <ব䞣>;”ˈ䖭ᇚЎ var ៥Ӏ᥹㾺ⱘ㄀ϔϾ݇䬂ᄫ˄ेֱ⬭ᄫ˅DŽ䖭Ͼ݇䬂ᄫ⫼԰ໄᯢব䞣DŽ᳔ㅔऩⱘໄᯢᮍ⊩ var <ব䞣> [= <ؐ>]; 䇒ූヨ䆄 ব䞣䳔㽕ໄᯢ≵᳝ໄᯢⱘব䞣ϡ㛑Փ⫼ˈ৺߭Ӯߎ䫭˖Ā᳾ᅮНāDŽໄᯢব䞣ৃҹ⫼˖ ㄀ 142 义 ˖㑻ᥦ߫ܜ㑻ࠄԢӬܜㅫヺǃԡ䖤ㅫヺǃ䘏䕥䖤ㅫヺǃ໡ড়䖤ㅫヺDŽϟ㸼ᇚ䖭ѯ䖤ㅫヺҢ催Ӭ ⱘҷ᭄ᓣDŽϔϾ㸼䖒ᓣৃҹাࣙ৿ϔϾᐌ᭄៪ϔϾব䞣DŽ䖤ㅫヺৃҹᰃಯ߭䖤ㅫヺǃ݇㋏䖤 㸼䖒ᓣϢ᭄ᄺЁⱘᅮНⳌԐˈ㸼䖒ᓣᰃᣛ݋᳝ϔᅮⱘؐⱘǃ⫼䖤ㅫヺᡞᐌ᭄੠ব䞣䖲᥹䍋ᴹ JavaScript 㸼䖒ᓣϢ䖤ㅫヺ āDŽ⫼䗮֫ⱘ䇈⊩ˈĀ䫭āDŽ؛false ᏗᇨؐĀ true ᏗᇨؐĀⳳāDŽ⫼䗮֫ⱘ䇈⊩ˈĀᇍāDŽ ᅗ䛑ϡⳌㄝˈ⫮㟇 NaN ᴀ䑿гϡㄝѢ NaN DŽ ℷ⹂ⱘ᭄ؐᯊˈህӮ䖨ಲ“NaN”ؐDŽNaN ؐ䴲ᐌ⡍⅞ˈ಴ЎᅗĀϡᰃ᭄ᄫāˈ᠔ҹӏԩ᭄䎳 NaN “Not a Number”DŽߎ⦄䖭Ͼ᭄ؐ↨䕗ᇥ㾕ˈҹ㟇Ѣ៥Ӏৃҹϡ⧚ᅗDŽᔧ䖤ㅫ᮴⊩䖨ಲ ᰃ“null”DŽӕ೒䖨ಲϔϾϡᄬ೼ⱘᇍ䈵ᯊгӮߎ⦄ null ؐDŽ null ϔϾ⡍⅞ⱘぎؐDŽᔧব䞣᳾ᅮНˈ៪㗙ᅮНПৢ≵᳝ᇍ݊䖯㸠ӏԩ䌟ؐ᪡԰ˈᅗⱘؐህ 䇒ූヨ䆄 JavaScript ᐌ᭄᳝ϟ߫޴Ͼ˖ ㄀ 143 义 ৢؐ Ь䰸∖ԭˈ᠔ᕫ㒧ᵰ䌟㒭 xˈᑊ䖨ಲ x 䌟ޣx Ϣ y Ⳍࡴ x/=y x%=y ໡ড়䖤ㅫ x+=y x-=y x*=y 䌟ؐǃ x=y ᡞ y ⱘؐ䌟㒭 xˈ䖨ಲ᠔䌟ⱘؐ ಲ y ⱘؐ˄ᠻ㸠 y 䇁হ˅ ᴵӊ c?x:y ᔧᴵӊ c Ў true ᯊ䖨ಲ x ⱘؐ˄ᠻ㸠 x 䇁হ˅ˈ৺߭䖨 ✻ḋ䖤㸠ϟএDŽ falseˈѢᰃᴀ㸼䖒ᓣゟे䖨ಲ falseˈ㗠ϡ䆎 y ᰃ໮ᇥˈ⫮㟇 y ৃҹᇐ㟈ߎ䫭ˈ⿟ᑣгৃҹ ᇚϡএ⧚Ӯ y ⱘؐDŽ՟བˈfalse && yˈ಴Ў x == falseˈϡㅵ y ⱘؐᰃҔМˈ㒧ᵰྟ㒜ᰃ ᅮ㒧ᵰˈᅗӀއ䘏䕥Ϣ៪᳝ᯊ׭㹿⿄ЎĀᖿ䗳Ϣ៪āDŽ䖭ᰃ಴Ўᔧ㄀ϔ᪡԰᭄˄[˅Ꮖ㒣ৃҹ false ᯊ䖨ಲ false 䘏䕥៪ x||y ᔧ x ੠ y ӏᛣϔϾЎ true ᯊ䖨ಲ trueˈᔧϸ㗙ৠᯊЎ 䘏䕥Ϣ x&&y ᔧ x ੠ y ৠᯊЎ true ᯊ䖨ಲ trueˈ৺߭䖨ಲ false ᔧ䘏䕥䖤ㅫヺDŽܙҹԡ䖤ㅫヺгৃҹ āؐ߭ᰃܼ䚼ᰃ 0 ⱘѠ䖯ࠊ᭄ˈ᠔؛⬉㛥ݙ䚼˄䗮ᐌ˅ᰃܼ䚼᭄ԡ䛑ᰃ 1 ⱘѠ䖯ࠊ᭄ˈ㗠Ā ࣪៤Ѡ䖯ࠊ᭄ˈᇍ↣Ͼ᭄ԡᠻ㸠ҹϞ᠔߫Ꮉ԰ˈ✊ৢ䖨ಲᕫࠄⱘᮄѠ䖯ࠊ᭄DŽ⬅ѢĀⳳāؐ೼ ᰃ˖ᡞϸϾ᪡԰᭄˄े x ੠ y˅މԡ䖤ㅫヺ䗮ᐌӮ㹿ᔧ԰䘏䕥䖤ㅫヺᴹՓ⫼DŽᅗⱘᅲ䰙䖤ㅫᚙ ᠡ䖨ಲ䳊 ԡ៪ x|y ϸϾ᭄ԡЁা㽕᳝ϔϾЎ 1ˈ߭䖨ಲ 1˗ᔧϸϾ᭄ԡ䛑Ў䳊ᯊ ԡᓖ៪ x^y ϸϾ᭄ԡЁ᳝Ϩা᳝ϔϾЎ 0 ᯊˈ䖨ಲ 0ˈ৺߭䖨ಲ 1 䛑Ў 0މᚙ ԡϢ x&y ᔧϸϾ᭄ԡৠᯊЎ 1 ᯊˈ䖨ಲⱘ᭄᥂ⱘᔧ᭄ࠡԡЎ 1ˈ݊Ҫ ϡㄝѢ x!=y ᔧ x ϡㄝѢ y ᯊ䖨ಲ true ؐˈ৺߭䖨ಲ false ؐ x==y ᔧ x ㄝѢ y ᯊ䖨ಲ true ؐˈ৺߭䖨ಲ false ؐ ㄝѢǃ x>=y x>y ᔧヺড়ᴵӊᯊ䖨ಲ true ؐˈ৺߭䖨ಲ false ؐ ݇㋏䖤ㅫ x䛑া㛑ᰃϔϾ䇁হˈ℆Փ⫼໮ᴵ䇁হˈ䇋⫼䇁হ 1>੠ᇨؐˈᖙ乏⫼ᇣᣀোᣀ䍋ᴹ˗ ᴵӊ!ᰃᏗ䇁হ 2>DŽϢ“?:”ϡৠⱘᰃˈif াᰃϔᴵ䇁হˈϡӮ䖨ಲ᭄ؐDŽⱘ䆱ˈህᠻ㸠 䇁হ 1>ˈ৺߭ˈབᵰ else 䚼ߚᄬ೼ᴵӊ!Ўⳳᯊᠻ㸠ᴀ䇁হ᳝⚍䈵ᴵӊ㸼䖒ᓣ“?:”˖ᔧ if ( <ᴵӊ> ) <䇁হ 1> [ else <䇁হ 2> ]; if 䇁হ ৢݡߴ䰸гϡ䖳DŽ བᵰᛇ㽕ಲ䙷↉ҷⷕᗢМࡲ˛᳔ད䖬ᰃ⫼⊼䞞ˈᡞ᱖ᯊϡ㽕ⱘҷⷕĀ䱤āএˈࠄ⹂ᅮᮍ⊩ҹ ⱘᯊ׭ˈ᳝ᯊ䳔㽕ᡞϔ↉ҷⷕᤶ៤঺ϔ↉ˈ៪㗙᱖ᯊϡ㽕ϔ↉ҷⷕDŽ䖭ᯊ᳔ᖠ⫼ Delete 䬂ˈ 㛑㡖ⳕԴ੠݊Ҫ⿟ᑣਬⱘᅱ䌉ᯊ䯈ˈՓҪӀϡ⫼㢅䌍໮ԭⱘᯊ䯈⧶⺼Դⱘ⿟ᑣDŽ೼⿟ᑣ䇗䆩 ៤ݭ⊼䞞ⱘдᛃˈݏᦤ⼎བᵰԴⱘ⿟ᑣ䳔㽕㤝〓ˈ៪㗙䳔㽕䅽߿Ҏ䯙䇏ˈ⊼䞞㛑ᐂϞ໻ᖭDŽ ϔ㸠ࠄ໮㸠᭛ᄫDŽ⿟ᑣᠻ㸠ࠄ“/*”໘ˈᇚᗑ⬹ҹৢⱘ᠔᳝᭛ᄫˈⳈࠄߎ⦄“*/”ЎℶDŽ ⷕ᳝“//”ˈ䙷Мˈ“//”ৢ䴶ⱘ䚼ߚᇚ㹿ᗑ⬹DŽ㗠໮㸠⊼䞞ᰃ⫼“/*”੠“*/”ᣀ䍋ᴹⱘ JavaScript ⊼䞞᳝ϸ⾡˖ऩ㸠⊼䞞੠໮㸠⊼䞞DŽऩ㸠⊼䞞⫼ঠড᭰ᴴ“//”㸼⼎DŽᔧϔ㸠ҷ Ҫ᠔᳝䇁㿔ϔḋˈJavaScript ⱘ⊼䞞೼䖤㸠ᯊгᰃ㹿ᗑ⬹ⱘDŽ⊼䞞া㒭⿟ᑣਬᦤկ⍜ᙃDŽ݊ڣ ⊼䞞 ϟ䴶ᇚᓔྟ䅼䆎 JavaScript ෎ᴀ㓪⿟ੑҸˈ៪㗙িĀ䇁হāDŽ JavaScript 䇁হ ㄀Ѩ໽ ҹ߽⫼DŽ՟བˈ⫼ҹϟ䇁হ˖a = b = c = 10ˈৃҹϔ⃵ᇍϝϾব䞣䌟ؐDŽ ⫼ᣀো( )DŽ՟བ˖(a == 0)||(b == 0)DŽϔѯ⫼ᴹ䌟ؐⱘ㸼䖒ᓣˈ⬅Ѣ᳝䖨ಲⱘؐˈৃҹࡴ 㑻ˈৃҹՓܜ㑻DŽ㓪⿟ᯊབᵰϡ䆄ᕫ䖤ㅫヺⱘӬܜ᥹ϸϾᄫヺІП⫼DŽ䇋ᆚߛ⊼ᛣ䖤ㅫⱘӬ 䇒ූヨ䆄 ᠔᳝Ϣಯ߭䖤ㅫ᳝݇ⱘ䖤ㅫヺ䛑ϡ㛑԰⫼೼ᄫヺІൟব䞣ϞDŽᄫヺІৃҹՓ⫼ +ǃ+= ԰Ў䖲 ㄀ 145 义 ;break continue ᐂњ៥Ӏ໻ᖭDŽ ᳝ᯊ׭೼ᕾ⦃ԧݙˈ䳔㽕ゟे䏇ߎᕾ⦃៪䏇䖛ᕾ⦃ԧݙ݊ԭҷⷕ㗠䖯㸠ϟϔ⃵ᕾ⦃DŽbreak ੠ break ੠ continue DŽܡݙᄬˈᕜৃ㛑䗴៤⅏ᴎˈᑨ䆹ሑ᳔໻ⱘࡾ࡯䙓 ᔧᯊℷ೼䖤㸠ⱘҷⷕǃℷ೼ϟ䕑ⱘ᭛ḷˈ੠ऴ⫼ᕜ໻ⱘذᛃ⿄ПЎĀ⅏ᕾ⦃āDŽ⅏ᕾ⦃Ӯᓘ ៥ӀдˈމԚ䏣ܹℸᕾ⦃ˈህӮ಴Ўᴵӊᘏᰃ⒵䎇㗠ϔⳈೄ೼ᕾ⦃䞠䴶ˈϡ㛑ߎᴹDŽ䖭⾡ᚙ ᕾ⦃ᴵӊ!᠔⍝ঞⱘব䞣ⱘؐⱘ䇁হˈ৺߭ϔ㽕䞡໡ᠻ㸠ᶤѯ䇁হП໪ˈ䖬䳔㽕ϔѯ㛑বࡼ ϟ䛑Փ⫼䇁হഫˈ಴Ў䰸њމ䇁হ!гা㛑ᰃϔᴵ䇁হˈԚᰃϔ㠀ᚙᗻ䋼≵᳝ for ᕾ⦃ᔎDŽ 䇁হ!DŽwhile ᕾ⦃ⱘ㌃ࡴᕾ⦃ᴵӊ!ᯊᠻ㸠↨ for ᕾ⦃ㅔऩˈwhile ᕾ⦃ⱘ԰⫼ᰃᔧ⒵䎇 while (<ᕾ⦃ᴵӊ>) <䇁হ>; ব䞣㌃ࡴᮍ⊩!ৃҹᰃӏᛣⱘ䌟ؐ㸼䖒ᓣˈབ i+=3ǃi*=2ǃi-=j ㄝ䛑៤ゟDŽ ϔˈ<ޣϢ݊Ҫ䇁㿔ϡৠˈJavaScript ⱘ for ᕾ⦃≵᳝㾘ᅮᕾ⦃ব䞣↣⃵ᕾ⦃ϔᅮ㽕ࡴϔ៪ 䇁হ!া㛑ᰃϔ㸠䇁হˈབᵰᛇ⫼໮ᴵ䇁হˈԴ䳔㽕⫼䇁হഫDŽ੠ if 䇁হϔḋˈ ህᰃ i>=10 ᯊ㒧ᴳDŽ㒧ᵰᰃ೼᭛ḷЁ䕧ߎњ“123456789”DŽ 䇋খ䍞Āᇍ䈵࣪㓪⿟āϔゴ˅˗䞡໡ᯊ i++ˈгህᰃᡞ i ࡴ 1˗ᕾ⦃Ⳉࠄ i<10 ϡ⒵䎇ˈг 㒭 i 䌟߱ྟؐ 1ˈ✊ৢᠻ㸠 document.write(i)䇁হ˄԰⫼ᰃ೼᭛ḷЁݭ i ⱘؐˈܜᴀ䇁হ for (i = 1; i < 10; i++) document.write(i); for ᕾ⦃āDŽϟ䴶ⳟⳟ՟ᄤDŽ“خ៤ゟህ䗔ߎᕾ⦃DŽ䖭ি ব䞣!԰㌃ࡴˈಲࠄ“*”໘䞡໡ˈབᵰϡব䞣㌃ࡴᮍ⊩!ᇍ䇁হ!ˈ✊ৢᣝབᵰ៤ゟህᠻ㸠 ব䞣!ⱘᴵӊ㸼䖒ᓣ˅ᰃ৺៤ゟˈᕾ⦃ᴵӊ!˄ᑨ䆹ᰃϔϾ݇Ѣ߸ᮁ ߱ྟؐ!ˈ✊ৢব䞣!䌟 㒭ܜᕾ⦃ᴵӊ!Ў false ЎℶDŽᅗᰃ䖭ḋ䖤԰ⱘ˖佪䇁হ!ˈⳈࠄᴀ䇁হⱘ԰⫼ᰃ䞡໡ᠻ㸠 for (<ব䞣>=<߱ྟؐ>; <ᕾ⦃ᴵӊ>; <ব䞣㌃ࡴᮍ⊩>) <䇁হ>; ᕾ⦃䇁হ হ䇁হ᳝Ңሲ݇㋏ᯊˈՓ⫼㓽䖯㛑Փ⿟ᑣ᳈ᯧ䇏ˈᮍ֓⿟ᑣਬ䖯㸠㓪ݭ៪ׂᬍᎹ԰DŽ ϔহ᳾ᅠ៤䇁হˈᅗӀӮ㒻㓁ᕔϟ䇏DŽՓ⫼㓽䖯гᰃᕜདⱘдᛃˈᔧϔѯ䇁হϢϞ䴶ⱘϔϸ 䴶≵᳝ゟेݭϞ䇁হˈ㗠ᰃᤶϔ㸠ݡ㒻㓁ݭDŽ⌣㾜఼ϡӮ⏋⎚ⱘˈᔧᅗӀ䇏ᅠϔ㸠ˈথ⦄ᰃ ϔ㸠ҷⷕ໾䭓ˈ៪㗙⍝ঞࠄ↨䕗໡ᴖⱘጠ༫ˈৃҹ㗗㰥⫼໮㸠᭛ᴀˈབϞ՟ˈif (a == 1) ৢ } 䇒ූヨ䆄 alert(a-b); ㄀ 146 义 : [default ... [break;] ... case r2: [break;] ... case r1: ˄⊼ᛣ˖ݦো˅ switch (e) { ⾡䯂乬ⱘ᳔དᮍ⊩DŽ 䖭އⳟ䍋ᴹ≵᳝䯂乬ˈԚՓ⫼໾໮ⱘ if 䇁হⱘ䆱ˈ⿟ᑣⳟ䍋ᴹ᳝⚍хDŽswitch 䇁হህᰃ㾷 } result = 'error'; } else { result = 'excellent'; } else if (score <= 100) { result = 'good'; } else if (score < 90) { result = 'pass'; } else if (score < 80) { result = 'fail'; if (score >= 0 && score < 60) { হ˖ བᵰ㽕ᡞᶤѯ᭄᥂ߚ㉏ˈ՟བˈ㽕ᡞᄺ⫳ⱘ៤㒽ᣝӬǃ㡃ǃЁǃᏂߚ㉏ˈ៥Ӏৃ㛑Ӯ⫼ if 䇁 switch 䇁হ 䕧ߎ˖124679DŽ } document.write(i); if (i == 3 || i == 5 || i == 8) continue; for (i = 1; i < 10; i++) { ՟ ড়ˈህ䏇ߎᕾ⦃DŽ ᴀ䇁হᬒ೼ᕾ⦃ԧݙˈ԰⫼ᰃЁℶᴀ⃵ᕾ⦃ˈᑊᠻ㸠ϟϔ⃵ᕾ⦃DŽབᵰᕾ⦃ⱘᴵӊᏆ㒣ϡヺ continue; ᴀ䇁হᬒ೼ᕾ⦃ԧݙˈ԰⫼ᰃゟे䏇ߎᕾ⦃DŽ 䇒ූヨ䆄 ㄀ 147 义 њϡᡞ 100 ߚᔧ䫭䇃䆎˄parseInt(100 / 10) == 10˅DŽ ݊Ё parseInt()ᮍ⊩ᰃҹৢӮҟ㒡ⱘˈ԰⫼ᰃপᭈDŽ᳔ৢ default ↉⫼ⱘ if 䇁হˈᰃЎ } result = 'error'; else result = 'excellent'; if (score == 100) default: break; result = 'excellent'; case 9: break; result = 'good'; case 8: break; result = 'pass'; case 7: case 6: break; result = 'fail'; case 5: case 4: case 3: case 2: case 1: case 0: switch (parseInt(score / 10)) { Ϟ䖍ⱘ if ↉⫼ switch ᬍݭህᰃ˖ হˈབᵰ≵᳝ default ഫˈswitch 䇁হ㒧ᴳDŽ switch ↉㨑㒧ᴳ˄“}”˅DŽབᵰ≵᳝ϔϾؐϢ e ऍ䜡ˈ䙷Мህᠻ㸠“default:”ৢ䖍ⱘ䇁 䕗ˈᔧᡒࠄϔϾⳌㄝѢ e ⱘؐᯊˈህᠻ㸠䆹“case”ৢⱘ䇁হˈⳈࠄ䘛ࠄ break 䇁হ៪ 䖭ϔ໻↉ⱘ԰⫼ᰃ˖䅵ㅫ e ⱘؐ˄e Ў㸼䖒ᓣ˅ˈ✊ৢ䎳ϟ䖍“case”ৢⱘ r1ǃr2……↨ } 䇒ූヨ䆄 ...] ㄀ 148 义 བ˖'1&2&345&678'.split('&')䖨ಲ᭄㒘˖1,2,345,678DŽ݇Ѣ᭄㒘ˈ៥Ӏㄝϔϟህ䅼䆎DŽ ᅮњߚ⾏ⱘഄᮍˈᅗᴀ䑿ϡӮࣙ৿೼᠔䖨ಲⱘ᭄㒘ЁDŽ՟އ!ߚ䱨ヺᄫヺ䈵!Ёߚ⾏ᓔᴹⱘˈ ᄫヺІᇍᄫヺІᇍ䈵>.split(<ߚ䱨ヺᄫヺ>)˗䖨ಲϔϾ᭄㒘ˈ䆹᭄㒘ᰃҢsplit() ⫼⊩˖ 䎳 indexOf() ⳌԐˈϡ䖛ᰃҢৢ䖍ᓔྟᡒDŽ ᄫヺІᇍ䈵>.lastIndexOf(<঺ϔϾᄫヺІᇍ䈵>[, <䍋ྟԡ㕂>])˗lastIndexOf()⫼⊩˖ ࠄњˈህ䖨ಲᅗⱘԡ㕂ˈ≵᳝ᡒࠄህ䖨ಲ“-1”DŽ᠔᳝ⱘĀԡ㕂ā䛑ᰃҢ䳊ᓔྟⱘDŽ 䍋ྟԡ㕂!ህᗑ⬹Пࠡⱘԡ㕂˅ˈབᵰᡒ঺ϔϾᄫヺІᇍ䈵!˄བᵰ㒭ߎᄫヺІᇍ䈵!Ёᶹᡒ ᄫヺІᇍ䈵>.indexOf(<঺ϔϾᄫヺІᇍ䈵>[, <䍋ྟԡ㕂>])˗䆹ᮍ⊩Ң<indexOf() ⫼⊩˖ Ͼᄫヺⱘ ASCII ⷕ⬅ a, b, c... ㄝᴹ⹂ᅮDŽ fromCharCode() ⫼⊩˖String.fromCharCode(a, b, c...)˗䖨ಲϔϾᄫヺІˈ䆹ᄫヺІ↣ ऩϾᄫヺⱘ ASCII ⷕDŽ ԡ㕂!ԡⱘᄫヺІᇍ䈵>.charCodeAt(<ԡ㕂>)˗䖨ಲ䆹ᄫヺІԡѢ㄀charCodeAt() ⫼⊩˖ length - 1 ԡⱘDŽ ヺDŽ⊼ᛣ˖ᄫヺІЁⱘϔϾᄫヺᰃ㄀ 0 ԡⱘˈ㄀ѠϾᠡᰃ㄀ 1 ԡⱘˈ᳔ৢϔϾᄫヺᰃ㄀ ԡ㕂!ԡⱘऩϾᄫᄫヺІᇍ䈵>.charAt(<ԡ㕂>)˗䖨ಲ䆹ᄫヺІԡѢ㄀charAt() ⫼⊩˖ ᮍ⊩ ᄫヺІᇍ䈵>.length˗䖨ಲ䆹ᄫヺІⱘ䭓ᑺDŽlength ⫼⊩˖ ሲᗻ String ᄫヺІᇍ䈵DŽໄᯢϔϾᄫヺІᇍ䈵᳔ㅔऩǃᖿ᥋ǃ᳝ᬜǃᐌ⫼ⱘᮍ⊩ህᰃⳈ᥹䌟ؐDŽ ߭ a.toString() == '123'DŽ ᭄ؐব䞣>.toString()˗䖨ಲ˖ᄫヺІᔶᓣⱘ᭄ؐDŽབ˖㢹 a == 123˗toString() ⫼⊩˖ ᮍ⊩ ໻ⱘؐDŽ POSITIVE_INFINITY ⫼⊩˖Number.POSITIVE_INFINITY˗䖨ಲ˖ℷ᮴か໻ˈ↨Ā᳔໻ؐā䖬 ᇣⱘؐDŽ NEGATIVE_INFINITY ⫼⊩˖Number.NEGATIVE_INFINITY˗䖨ಲ˖䋳᮴か໻ˈ↨Ā᳔ᇣؐā䖬 NaN ⫼⊩˖Number.NaN ៪ NaN˗䖨ಲ“NaN”DŽ“NaN”˄ϡᰃ᭄ؐ˅೼ᕜᮽህҟ㒡䖛њDŽ MIN_VALUE ⫼⊩˖Number.MIN_VALUE˗䖨ಲĀ᳔ᇣؐāDŽ MAX_VALUE ⫼⊩˖Number.MAX_VALUE˗䖨ಲĀ᳔໻ؐāDŽ ሲᗻ ᇍ䈵ˈгህᰃĀব䞣āህ໮њDŽ Number “᭄ᄫāᇍ䈵DŽ䖭Ͼᇍ䈵⫼ᕫᕜᇥˈ԰㗙ህϔ⃵г≵᳝㾕䖛DŽϡ䖛ሲѢ“Number”ⱘ ⦄೼៥Ӏ㽕໡дҹϞᄺ䖛ⱘݙᆍњ——ᡞϔѯ᭄᥂㉏ൟ⫼ᇍ䈵ⱘ㾦ᑺ䞡ᮄᄺдϔϟDŽ ෎ᴀᇍ䈵 ≵᳝џӊˈ᳝ѯা᳝ሲᗻDŽᓩ⫼ᇍ䈵ⱘӏϔĀᗻ䋼ā⫼“<ᇍ䈵ৡ>.<ᗻ䋼ৡ>”䖭⾡ᮍ⊩DŽ ⱘĀᦤѸџӊāˈ⚍ߏ䖲᥹ѻ⫳ⱘĀ⚍ߏџӊāDŽϡᰃ᠔᳝ⱘᇍ䈵䛑᳝ҹϞϝϾᗻ䋼ˈ᳝ѯ ࡼ”(Scrolling)ㄝㄝ˗㗠ᇍ䈵ⱘџӊህ㛑ડᑨথ⫳೼ᇍ䈵Ϟⱘџᚙˈ՟བᦤѸ㸼ऩѻ⫳㸼ऩ ϔѯџᚙˈ՟བˈ㸼ऩⱘĀᦤѸ”(Submit)ˈにষⱘĀ⒮خᇍ䈵ⱘᮍ⊩㛑ᇍ䆹ᇍ䈵 ⱘ䭓ᆑǃ᭛ᄫḚ˄Textbox˅䞠ⱘ᭛ᄫㄝㄝ˗ڣᶤѯ⡍ᅮⱘᗻ䋼ⱘˈ՟བ˖ᄫヺІⱘ䭓ᑺǃ೒ ϔϾ㸼ऩ˄Form˅ㄝㄝDŽ↣Ͼᇍ䈵᳝ᅗ㞾Ꮕⱘሲᗻǃᮍ⊩੠џӊDŽᇍ䈵ⱘሲᗻᰃড᯴䆹ᇍ䈵 ᇍ䈵ᰃৃҹҢ JavaScript“࢓࡯㣗ೈāЁߦߚߎᴹⱘϔᇣഫˈৃҹᰃϔ↉᭛ᄫǃϔᐙ೒⠛ǃ 䗝ׂ) 䇒ූヨ䆄 JavaScript ᇍ䈵ⱘ෎ᴀⶹ䆚 ㄀ 149 义 [㋴ˈা䳔㽕˖myArray[myArray.lengthܗ㋴ⱘϟᷛࡴϔDŽ᠔ҹˈᛇ⏏ࡴϔϾܗ㒘䞠᳔ৢϔϾ ㋴DŽᅗㄝѢ᭄ܗ᭄㒘ᇍ䈵>.length˗䖨ಲ˖᭄㒘ⱘ䭓ᑺˈे᭄㒘䞠᳝໮ᇥϾlength ⫼⊩˖ ሲᗻ myArray[2][3] = ...; ㋴ᯊ˖ܗ㋴জᰃϔϾ᭄㒘DŽ䇗⫼䖭ϾĀѠ㓈᭄㒘āⱘܗ݊ᅲ䖭ᰃϔϾϔ㓈᭄㒘ˈ䞠䖍ⱘ↣ϔϾ var myArray = new Array(new Array(), new Array(), new Array(), ...); 䖭⾡㰮ᢳ⊩˖ “myArray[...,3]”䖭⾡ᔶᓣⱘ䇗⫼݊ᅲা䖨ಲњ“myArray[3]”DŽ㽕Փ⫼໮㓈᭄㒘ˈ䇋⫼ ㋴DŽӏᛣܗѠ㓈᭄㒘ˈ៪㗙⫼“myArray[2,3]”䖭⾡ᮍ⊩ᴹ䖨ಲĀѠ㓈᭄㒘āЁⱘ ⊼ᛣ˖JavaScript া᳝ϔ㓈᭄㒘ʽगϛϡ㽕⫼“Array(3,4)”䖭⾡ᛮ㷶ⱘᮍ⊩ᴹᅮН 4 x 5 ⱘ ㋴ⱘ᭄㒘DŽܗℷᭈ᭄!Ͼぎ ㋴জᰃϔϾℷᭈ᭄ⱘ䆱ˈ䖭ᇚᅮНϔϾࣙ৿<ܗ㋴ˈ㗠䖭Ͼܗ㋴߫㸼Ёা᳝ϔϾܗԚᰃˈབᵰ myArray[0] == 1; myArray[1] == 4.5; myArray[2] == 'Hi'DŽ ㋴ᰃ˖ܗ՟བˈvar myArray = new Array(1, 4.5, 'Hi'); ᅮНњϔϾ᭄㒘 myArrayˈ䞠䖍ⱘ ㋴ 3>...);ܗ> ,<㋴ 2ܗ> ,<㋴ 1ܗ>)var <᭄㒘ৡ> = new Array བᵰᛇ೼ᅮН᭄㒘ⱘᯊ׭Ⳉ᥹߱ྟ᭄࣪᥂ˈ䇋⫼˖ ⊼ᛣ䖭䞠ⱘᮍᣀোϡᰃĀৃҹⳕ⬹āⱘᛣᗱˈ᭄㒘ⱘϟᷛ㸼⼎ᮍ⊩ህᰃ⫼ᮍᣀোᣀ䍋ᴹDŽ ᭄㒘ৡ>[<ϟᷛ>] = ...; ㋴ˈህ⫼˖ܗ䖭ḋህᅮНњϔϾぎ᭄㒘DŽҹৢ㽕⏏ࡴ᭄㒘 var <᭄㒘ৡ> = new Array(); ᭄㒘ⱘᅮНᮍ⊩˖ ᓔྟⱘ଺˅DŽ Ͼ៤ਬᇍ䈵䛑᳝ϔϾĀϟᷛāˈ⫼ᴹ㸼⼎ᅗ೼᭄㒘Ёⱘԡ㕂˄᮶✊ᰃĀԡ㕂āˈህгᰃҢ䳊 Array ᭄㒘ᇍ䈵DŽ᭄㒘ᇍ䈵ᰃϔϾᇍ䈵ⱘ䲚ড়ˈ䞠䖍ⱘᇍ䈵ৃҹᰃϡৠ㉏ൟⱘDŽ᭄㒘ⱘ↣ϔ ໻ݭⱘᄫヺІDŽ ᄫヺІᇍ䈵>.toUpperCase()˗䖨ಲᡞॳᄫヺІ᠔᳝ᇣݭᄫ↡䛑ব៤toUpperCase() ⫼⊩˖ ᇣݭⱘᄫヺІDŽ ᄫヺІᇍ䈵>.toLowerCase()˗䖨ಲᡞॳᄫヺІ᠔᳝໻ݭᄫ↡䛑ব៤toLowerCase() ⫼⊩˖ 䖨ಲぎᄫヺІDŽ ྟ!ԡ㕂ϔⳈপࠄॳᄫヺІሒDŽབᵰ᠔ᣛᅮⱘԡ㕂ϡ㛑䖨ಲᄫヺІˈ߭䭓ᑺˈ߭ᄤᄫヺІҢ 䭓!៪ᣛᅮᕫ䍙䖛ᄫヺІ䭓!ⱘϔ↉DŽབᵰ≵᳝ᣛᅮྟ!ԡ㕂ᓔྟˈ䭓ᑺЎІᰃॳᄫヺІҢ ᄫヺІᇍ䈵>.substr(<ྟ>[, <䭓>])˗䖨ಲॳᄫヺІⱘᄤᄫヺІˈ䆹ᄫヺsubstr() ⫼⊩˖ ⳈপࠄॳᄫヺІሒDŽབᵰ᠔ᣛᅮⱘԡ㕂ϡ㛑䖨ಲᄫヺІˈ߭䖨ಲぎᄫヺІDŽ ྟ!ԡ㕂ϔ㒜!៪ᣛᅮᕫ䍙䖛ᄫヺІ䭓ᑺˈ߭ᄤᄫヺІҢⱘ䭓ᑺ˄length˅DŽབᵰ≵᳝ᣛᅮ 㒜> - <ྟ> = 䖨ಲᄫヺІ㒜!ԡ㕂ⱘࠡϔԡ㕂ⱘϔ↉DŽྟ!ԡ㕂ࠄ䆹ᄫヺІᰃॳᄫヺІҢ ᄫヺІᇍ䈵>.substring(<ྟ>[, <㒜>])˗䖨ಲॳᄫヺІⱘᄤᄫヺІˈ䇒ූヨ䆄 substring() ⫼⊩˖ ㄀ 150 义 floor(x) 䖨ಲᇣѢㄝѢ x ⱘ᳔໻ᭈ᭄DŽ exp(x) 䖨ಲ e ⱘ x ⃵ᐖ (ex)DŽ cos(x) 䖨ಲ x ⱘԭᓺDŽ ceil(x) 䖨ಲ໻ѢㄝѢ x ⱘ᳔ᇣᭈ᭄DŽ 䯈DŽ atan2(x, y) 䖨ಲ໡ᑇ䴶ݙ⚍(x, y)ᇍᑨⱘ໡᭄ⱘᐙ㾦ˈ⫼ᓻᑺ㸼⼎ˈ݊ؐ೼ -±ࠄ±П atan(x) 䖨ಲ x ⱘডℷߛؐDŽ asin(x) 䖨ಲ x ⱘডℷᓺؐDŽ acos(x) 䖨ಲ x ⱘডԭᓺؐ˄ԭᓺؐㄝѢ x ⱘ㾦ᑺ˅ˈ⫼ᓻᑺ㸼⼎DŽ abs(x) 䖨ಲ x ⱘ㒱ᇍؐDŽ ᮍ⊩ SQRT2 䖨ಲ 2 ⱘᑇᮍḍDŽ SQRT1_2 䖨ಲ 1/2 ⱘᑇᮍḍDŽ PI 䖨ಲ ±˄3.1415926535...)DŽ LOG10E 䖨ಲҹ 10 ЎԢⱘ e ⱘᇍ᭄ (log10e)DŽ LOG2E 䖨ಲҹ 2 ЎԢⱘ e ⱘᇍ᭄ (log2e)DŽ LN10 䖨ಲ 10 ⱘ㞾✊ᇍ᭄ (ln 10)DŽ LN2 䖨ಲ 2 ⱘ㞾✊ᇍ᭄ (ln 2)DŽ E 䖨ಲᐌ᭄ e (2.718281828...)DŽ ሲᗻ ⊩āˈ໻ᆊ೼Փ⫼ⱘᯊ׭䆄ԣ⫼“Math.<ৡ>”䖭⾡ḐᓣDŽ Math “᭄ᄺāᇍ䈵ˈᦤկᇍ᭄᥂ⱘ᭄ᄺ䅵ㅫDŽϟ䴶᠔ᦤࠄⱘሲᗻ੠ᮍ⊩ˈϡݡ䆺㒚䇈ᯢĀ⫼ ᳝݇ߑ᭄ˈ䇋ⳟϟ䴶DŽ ᣝ䰡ᑣᥦ᭄߫ᄫ˖ᡞϞ䴶ⱘ“a - b”䆹៤“b - a”DŽ myArray.sort(sortMethod); } return a - b; function sortMethod(a, b) { ᣝछᑣᥦ᭄߫ᄫ˖ ᮍ⊩ߑ᭄!ҟ㒡㒭໻ᆊDŽ᳝⫼ⱘ ᮍ⊩ߑ᭄!↨䕗䲒䆆䗄ˈ䖭䞠াᇚϔѯᮍ⊩ߑ᭄!᠔ᣛᅮⱘᥦᑣᮍ⊩ᥦᑣDŽᮍ⊩ߑ᭄!ˈ߭ᣝ ϟˈ80 ᰃ↨ 9 ᥦᕫࠡⱘDŽབᵰᣛᅮ<މᮍ⊩ߑ᭄!ˈ߭ᣝᄫ↡乎ᑣᥦ߫DŽ೼䖭⾡ᚙᵰϡᣛᅮ ㋴ᣝ✻ϔᅮⱘ乎ᑣᥦ߫DŽབܗ᭄㒘ᇍ䈵>.sort([<ᮍ⊩ߑ᭄>])˗Փ᭄㒘Ёⱘsort() ⫼⊩˖ 㒜!ˈ߭ᄤ䲚ϔⳈপࠄॳ᭄㒘ⱘ㒧ሒDŽ㒜!DŽབᵰϡ㒭ߎྟ!ˈ㒜ѢྟѢ ᭄㒘ᇍ䈵>.slice(<ྟ>[, <㒜>])˗䖨ಲϔϾ᭄㒘ˈ䆹᭄㒘ᰃॳ᭄㒘ⱘᄤ䲚ˈslice() ⫼⊩˖ Փ⫼䖭Ͼᮍ⊩ˈᅗᇚՓ᭄㒘ব៤˖[3, 2, 1]DŽ ㋴乎ᑣড䖛ᴹDŽབᵰᇍ᭄㒘[1, 2, 3]ܗ᭄㒘ᇍ䈵>.reverse()˗Փ᭄㒘Ёⱘreverse() ⫼⊩˖ ㋴П䯈DŽ䖭Ͼᮍ⊩ϡᕅડ᭄㒘ॳᴀⱘݙᆍDŽܗ㋴Ϣܗߚ䱨ヺ!㕂Ѣ㋴І䍋ᴹˈ⫼ ܗ᭄㒘ᇍ䈵>.join(<ߚ䱨ヺ>)˗䖨ಲϔϾᄫヺІˈ䆹ᄫヺІᡞ᭄㒘Ёⱘ৘Ͼjoin() ⫼⊩˖ ᮍ⊩ 䇒ූヨ䆄 = ...DŽ ㄀ 151 义 ϔ⾦ 1000 ↿⾦˅DŽ ᯊˈህ⫼˖“x.setTime(x.getTime() + 60 * 60 * 1000);”˄ϔᇣᯊ 60 ߚˈϔߚ 60 ⾦ˈ 䳊ᯊℷᓔྟ䅵ㅫࠄ᮹ᳳᇍ䈵᠔ᣛⱘ᮹ᳳⱘ↿⾦᭄DŽབᵰ㽕Փᶤ᮹ᳳᇍ䈵᠔ᣛⱘᯊ䯈᥼䖳 1 ᇣ g/setTime() 䖨ಲ䆒㕂ᯊ䯈ˈ䆹ᯊ䯈ህᰃ᮹ᳳᇍ䈵ⱘݙ䚼໘⧚ᮍ⊩˖Ң 1970 ᑈ 1 ᳜ 1 ᮹ g/set[UTC]Milliseconds()䖨ಲ䆒㕂↿⾦᭄DŽ g/set[UTC]Seconds()䖨ಲ䆒㕂⾦䩳᭄DŽ g/set[UTC]Minutes()䖨ಲ䆒㕂ߚ䩳᭄DŽ g/set[UTC]Hours()䖨ಲ䆒㕂ᇣᯊ᭄ˈ24 ᇣᯊࠊDŽ g/set[UTC]Day()䖨ಲ䆒㕂᯳ᳳˈ0 㸼⼎᯳ᳳ໽DŽ g/set[UTC]Date()䖨ಲ䆒㕂᮹ᳳDŽ g/set[UTC]Month()䖨ಲ䆒㕂᳜ӑDŽ ᬙՓ⫼“x.set[UTC]Year(00)”ᡞᑈӑ䆒ᅮЎ 1900 ᑈDŽ g/set[UTC]Year()䖨ಲ䆒㕂ᑈӑˈ⫼ϸԡ᭄㸼⼎DŽ䆒ᅮⱘᯊ׭⌣㾜఼㞾ࡼࡴϞ“19”ᓔ༈ˈ “x.set[UTC]FullYear(99)”ˈ߭ᑈӑ㹿䆒ᅮЎ 0099 ᑈDŽ g/set[UTC]FullYear() 䖨ಲ䆒㕂ᑈӑˈ⫼ಯԡ᭄㸼⼎DŽབᵰՓ⫼ བ᮴䇈ᯢˈᮍ⊩ⱘՓ⫼ḐᓣЎ˖“<ᇍ䈵>.<ᮍ⊩>”ˈϟৠDŽ 㦋ᕫ䆒ᅮⱘ᭄ؐᰃ෎Ѣ UTC ᯊ䯈ⱘˈ≵᳝߭㸼⼎෎Ѣᴀഄᯊ䯈៪⌣㾜ᳳ咬䅸ᯊ䯈ⱘDŽ ᮍ⊩DŽ“get”ᰃ㦋ᕫᶤϾ᭄ؐˈ㗠“set”ᰃ䆒ᅮᶤϾ᭄ؐDŽབᵰᏺ᳝“UTC”ᄫ↡ˈ߭㸼⼎ ҹϟ᳝ᕜ໮“g/set[UTC]XXX”䖭ḋⱘᮍ⊩ˈᅗ㸼⼎᮶᳝“getXXX”ᮍ⊩ˈজ᳝“setXXX” ᮍ⊩ ㄝㄝᮍ⊩DŽ᳔དⱘᮍ⊩ህᰃ⫼ϟ䴶ҟ㒡ⱘĀᮍ⊩āᴹϹḐⱘᅮНᯊ䯈DŽ var d = new Date('Oct 1, 1999'); //99 ᑈ 10 ᳜ 1 ᮹ var d = new Date(99, 10, 1); //99 ᑈ 10 ᳜ 1 ᮹ 䖭Ͼᮍ⊩Փ d ៤Ў᮹ᳳᇍ䈵ˈᑊϨᏆ᳝߱ྟؐ˖ᔧࠡᯊ䯈DŽབᵰ㽕㞾ᅮ߱ྟؐˈৃҹ⫼˖ var d = new Date; ᅮНϔϾ᮹ᳳᇍ䈵˖ 䯈˅೼᭄ؐϞᰃϔḋⱘDŽ ᳝᮹ᳳᯊ䯈ˈབᵰϡᣛᅮᯊऎˈ䛑䞛⫼“UTC”˄Ϫ⬠ᯊ˅ᯊऎˈᅗϢ“GMT”˄Ḑᵫ࿕⊏ᯊ ྟ䅵ㅫࠄ᮹ᳳᇍ䈵᠔ᣛⱘ᮹ᳳⱘ↿⾦᭄DŽབᵰ᠔ᣛ᮹ᳳ↨ 1970 ᑈᮽˈ߭ᅗᰃϔϾ䋳᭄DŽ᠔ ↿⾦᭄˄1/1000 ⾦˅DŽ೼ݙ䚼ˈ᮹ᳳᇍ䈵ᰃϔϾᭈ᭄ˈᅗᰃҢ 1970 ᑈ 1 ᳜ 1 ᮹䳊ᯊℷᓔ ᄬӏᛣϔϾ᮹ᳳˈҢ 0001 ᑈࠄ 9999 ᑈˈᑊϨৃҹ㊒⹂ࠄټDate ᮹ᳳᇍ䈵DŽ䖭Ͼᇍ䈵ৃҹ tan(x) 䖨ಲ x ⱘℷߛDŽ sqrt(x) 䖨ಲ x ⱘᑇᮍḍDŽ sin(x) 䖨ಲ x ⱘℷᓺDŽ round(x) 䖨ಲ x ಯ㟡ѨܹৢⱘؐDŽ random() 䖨ಲ໻Ѣ 0 ᇣѢ 1 ⱘϔϾ䱣ᴎ᭄DŽ pow(n, m) 䖨ಲ n ⱘ m ⃵ᐖ (nm)DŽ min(a, b) 䖨ಲ a, b Ё䕗ᇣⱘ᭄DŽ max(a, b) 䖨ಲ a, b Ё䕗໻ⱘ᭄DŽ 䇒ූヨ䆄 log(x) 䖨ಲ x ⱘ㞾✊ᇍ᭄ (ln x)DŽ ㄀ 152 义 [;[<ؐ> ] [return ... function ߑ᭄ৡ([খ᭄䲚]) { ᅮНߑ᭄⫼ҹϟ䇁হ˖ 㞾ᅮНߑ᭄ 㞾ᅮНߑ᭄˗ㄝㄝDŽ ᐌ㾕ⱘߑ᭄᳝˖ᵘ䗴ߑ᭄ˈབ Array()ˈ㛑ᵘ䗴ϔϾ᭄㒘˗ܼሔߑ᭄ˈेܼሔᇍ䈵䞠ⱘᮍ⊩˗ ߑ᭄ⱘ⾡㉏ ᠔䇧Āߑ᭄āˈᰃ᳝䖨ಲؐⱘᇍ䈵៪ᇍ䈵ⱘᮍ⊩DŽ ߑ᭄ߑ᭄ⱘᅮН unescape() ᰃ escape() ⱘড䖛⿟DŽ㾷㓪ᣀোЁᄫヺІ៤Ўϔ㠀ᄫヺІDŽ ៤“%20”䖭⾡ḐᓣDŽ“+”ϡ㹿㓪ⷕˈབᵰ㽕“+”г㹿㓪ⷕˈ䇋⫼˖escape('...', 1)DŽ escape() 䖨ಲᣀোЁⱘᄫヺІ㒣䖛㓪ⷕৢⱘᮄᄫヺІDŽ䆹㓪ⷕᑨ⫼Ѣ URLˈгህᰃᡞぎḐݭ ߭䕀ᤶ䖛⿟Ё᠔᭄᳝ؐ䕀ᤶ៤⡍ᅮ䖯ࠊDŽ ᇍ䈵>.toString()˗ᡞᇍ䈵䕀ᤶ៤ᄫヺІDŽབᵰ೼ᣀোЁᣛᅮϔϾ᭄ؐˈtoString() ⫼⊩˖ ៤⍂⚍᭄ˈབᵰҹᄫ↡ᓔ༈ˈ߭䖨ಲ“NaNāDŽ parseFloat() 䖨ಲᡞᣀোݙⱘᄫヺІ䕀ᤶ៤⍂⚍᭄ПৢⱘؐˈᄫヺІᓔ༈ⱘ᭄ᄫ䚼ߚ㹿䕀ᤶ ⱘ᭄ᄫ䚼ߚ㹿䕀ᤶ៤ᭈ᭄ˈབᵰҹᄫ↡ᓔ༈ˈ߭䖨ಲ“NaN”DŽ parseInt() 䖨ಲᡞᣀোݙⱘݙᆍ䕀ᤶ៤ᭈ᭄ПৢⱘؐDŽབᵰᣀোݙᰃᄫヺІˈ߭ᄫヺІᓔ༈ isNaN() བᵰᣀোݙⱘؐᰃ“NaN”߭䖨ಲ true ৺߭䖨ಲ falseDŽ Number.MAX_VALUE П䯈˅ህ䖨ಲ true˗৺߭䖨ಲ falseDŽ isFinite() བᵰᣀোݙⱘ᭄ᄫᰃĀ᳝䰤āⱘ˄ҟѢ Number.MIN_VALUE ੠ 䇁হ៪㸼䖒ᓣᴹ䖤㸠DŽޚeval() ᡞᣀোݙⱘᄫヺІᔧ԰ᷛ ᮍ⊩ NaN ϔᮽህ䇈䖛њDŽ ሲᗻ Ӯߎ䫭˅ˈ㗠Ⳉ᥹⫼“xxx”DŽخϨ䖭ḋމ˄”“Global.xxx Global ᇍ䈵āˈԚᰃᓩ⫼ᅗⱘᮍ⊩੠ሲᗻҢᴹϡ⫼“خJScript 䇁㿔খ㗗Ёˈᅗি ܼሔᇍ䈵Ңϡ⦄ᔶˈᅗৃҹ䇈ᰃ㰮ᢳߎᴹⱘˈⳂⱘ೼Ѣᡞܼሔߑ᭄Āᇍ䈵࣪āDŽ೼ Microsoft ܼሔᇍ䈵 parse() ⫼⊩˖Date.parse(<᮹ᳳᇍ䈵>)˗䖨ಲ䆹᮹ᳳᇍ䈵ⱘݙ䚼㸼䖒ᮍᓣDŽ toUTCString() 䖨ಲϔϾᄫヺІˈᦣ䗄᮹ᳳᇍ䈵᠔ᣛⱘ᮹ᳳˈ⫼ UTC ḐᓣDŽ toGMTString() 䖨ಲϔϾᄫヺІˈᦣ䗄᮹ᳳᇍ䈵᠔ᣛⱘ᮹ᳳˈ⫼ GMT ḐᓣDŽ བ˖“2000-07-21 15:43:46”DŽ toLocaleString() 䖨ಲϔϾᄫヺІˈᦣ䗄᮹ᳳᇍ䈵᠔ᣛⱘ᮹ᳳˈ⫼ᴀഄᯊ䯈㸼⼎ḐᓣDŽ Jul 21 15:43:46 UTC+0800 2000āDŽ toString() 䖨ಲϔϾᄫヺІˈᦣ䗄᮹ᳳᇍ䈵᠔ᣛⱘ᮹ᳳDŽ䖭ϾᄫヺІⱘḐᓣ㉏ԐѢ˖“Fri ϰᮍⱘᏖऎˈ䆹ؐЎ䋳ˈ՟བ˖Ё೑ᯊऎ˄GMT+0800˅䖨ಲ“-480”DŽ 䇒ූヨ䆄 getTimezoneOffset() 䖨ಲ᮹ᳳᇍ䈵䞛⫼ⱘᯊऎϢḐᵫ࿕⊏ᯊ䯈᠔Ꮒⱘߚ䩳᭄DŽ೼Ḑᵫ࿕⊏ ㄀ 153 义 ϔϾㅔऩⱘ义䴶䅵఼᭄ 1 ǃ 㸼ऩ偠䆕㘨㋏ ǃ ᮄ䯏义䴶ⱘ߫㸼ߛᤶ 䇒ූ㒗д “arguments”DŽ arguments ϔϾ᭄㒘ˈড᯴໪䚼⿟ᑣ䇗⫼ߑ᭄ᯊᣛᅮⱘখ᭄DŽ⫼⊩˖Ⳉ᥹೼ߑ᭄ݙ䚼䇗⫼ ሲᗻ ⱘˈ՟བ Basic ㉏䇁㿔ⱘ“Sub”ǃPascal 䇁㿔ⱘ“procedure”DŽ Ā䖛⿟”خ᳈໮ⱘᯊ׭ˈߑ᭄ᰃ≵᳝䖨ಲؐⱘˈ䖭⾡ߑ᭄೼ϔѯ↨䕗ᔎ䇗ϹḐⱘ䇁㿔Ёᰃি ࡴⱘ㒧ᵰDŽ೼ߑ᭄໪䚼ˈ߽⫼“var total = addAll(3, 4, 5);”᥹ᬊߑ᭄ⱘ䖨ಲؐDŽ 䖭Ͼ՟ᄤᓎゟњϔϾি“addAll”ⱘߑ᭄ˈᅗ᳝ 3 Ͼখ᭄˖a, b, cˈ԰⫼ᰃ䖨ಲϝϾ᭄Ⳍ var total = addAll(3, 4, 5); } return a + b + c; function addAll(a, b, c) { ՟ ᅗ㛑೼ᭈϾ䖛⿟ⱘӏᛣഄᮍ㹿䇗⫼ǃ᳈ᬍDŽ ܼሔব䞣 ೼ Script ⱘĀḍ䚼ā˄䴲ߑ᭄ݙ䚼˅ⱘ“var”䇁হ᠔ᅮНⱘব䞣ህᰃܼሔব䞣ˈ “return”䖨ಲؐˈ㽕МՓ⫼ܼሔব䞣DŽ ѯব䞣䛑ϡ㛑㹿ߑ᭄໪䚼ⱘ䖛⿟䇗⫼DŽ㽕Փߑ᭄ݙ䚼ⱘֵᙃ㛑㹿໪䚼䇗⫼ˈ㽕МՓ⫼ ೼ߑ᭄ⱘݙ䚼ˈখ᭄ৃҹⳈ᥹ᔧ԰ব䞣ᴹՓ⫼ˈᑊৃҹ⫼ var 䇁হᴹᮄᓎϔѯব䞣ˈԚᰃ䖭 ಲ䆹ؐDŽ ؐ!ˈ߭䗔ߎߑ᭄ⱘৠᯊ䖨ℶᠻ㸠ˈᑊ䖨ಲࠄ䇗⫼ᅗⱘ⿟ᑣЁDŽབᵰ“return”ৢᏺ᳝ذࠏ 䖭ѯ䇁হЁৃ㛑ࣙ৿“return”䇁হDŽ೼ᠻ㸠ϔϾߑ᭄ⱘᯊ׭ˈ⺄ࠄ return 䇁হˈߑ᭄ゟ ߑ᭄ⱘݙ䚼᳝ϔ㟇໮㸠䇁হˈ䖭ѯ䇁হᑊϡӮゟेᠻ㸠ˈ㗠াᔧ᳝݊ᅗ⿟ᑣ䇗⫼ᅗᯊᠡᠻ㸠DŽ খ᭄䲚ᰃϔϾ៪໮Ͼ⫼䗫োߚ䱨ᓔᴹⱘখ᭄ⱘ䲚ড়ˈབ˖a, b, cDŽ খ᭄DŽخ䅽ߑ᭄ⶹ䘧“3”䖭Ͼ᭄ؐˈ䖭ᯊ׭ህ㽕᳝ϔϾব䞣ᴹ᥹ᬊ᭄ؐˈ䖭⾡ব䞣ি খ᭄ᰃߑ᭄໪䚼৥ߑ᭄ݙ䚼Ӵ䗦ֵᙃⱘḹṕˈ՟བˈᛇিϔϾߑ᭄䖨ಲ 3 ⱘゟᮍˈԴህ㽕 খ᭄䲚ৃ᳝ৃ᮴ˈԚᣀোህϔᅮ㽕᳝DŽ ᄫ䞡໡ㄝDŽ ߑ᭄ৡϢব䞣ৡ᳝ϔḋⱘ䍋ৡ㾘ᅮˈгህᰃাࣙ৿ᄫ↡᭄ᄫϟߦ㒓ǃᄫ↡ᥦ༈ǃϡ㛑Ϣֱ⬭ ݊Ёˈ⫼೼ function Пৢ੠ߑ᭄㒧ሒⱘ໻ᣀোᰃϡ㛑ⳕএⱘˈህㅫᭈϾߑ᭄া᳝ϔহDŽ } 䇒ූヨ䆄 ... ㄀ 154 义

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