代码如下，请大神支招~
var option = {
tooltip : {
trigger: 'item'
},
color:["#006edd", "#e0ffff"],
dataRange: {
min: 1,
max: 43,
x: 10,
y: 250,
orient: 'vertical',
calculable : false,
color: ["#006edd", "#e0ffff"],
text:['43人','1人']
},
series : [{
name: "新增订阅人数",
type: 'map',
mapType: 'china',
mapValuePrecision: 0,
itemStyle:{
normal:{
label:{show:true},
areaStyle: {
color: '#f5f5f5'
}
},
emphasis:{label:{show:true}}
},
mapLocation: {
x: 10,
y: 20
},
data:[{
"name" : "河南", "value": 43, "code": "30"
}, {
"name" : "广东", "value": 42, "code": "7"
}, {
"name" : "江苏", "value": 41, "code": "18"
}, {
"name" : "山东", "value": 34, "code": "8"
}, {
"name" : "四川", "value": 34, "code": "32"
}, {
"name" : "浙江", "value": 33, "code": "29"
}, {
"name" : "山西", "value": 24, "code": "10"
}, {
"name" : "湖南", "value": 22, "code": "26"
}, {
"name" : "上海", "value": 19, "code": "289"
}, {
"name" : "湖北", "value": 18, "code": "15"
}, {
"name" : "陕西", "value": 16, "code": "27"
}, {
"name" : "安徽", "value": 16, "code": "23"
}, {
"name" : "江西", "value": 15, "code": "31"
}, {
"name" : "云南", "value": 14, "code": "28"
}, {
"name" : "河北", "value": 13, "code": "25"
}, {
"name" : "北京", "value": 13, "code": "131"
}, {
"name" : "辽宁", "value": 12, "code": "19"
}, {
"name" : "未知", "value": 11, "code": "0"
}, {
"name" : "广西", "value": 11, "code": "17"
}, {
"name" : "福建", "value": 11, "code": "16"
}, {
"name" : "贵州", "value": 11, "code": "24"
}, {
"name" : "内蒙古","value": 10,"code": "22"
}, {
"name" : "吉林", "value": 9, "code":"9"
}, {
"name" : "重庆", "value": 8, "code":"132"
}, {
"name" : "黑龙江","value": 8, "code": "2"
}, {
"name" : "新疆", "value": 6, "code":"12"
}, {
"name" : "甘肃", "value": 6, "code":"6"
}, {
"name" : "天津", "value": 5, "code":"332"
}, {
"name" : "海南", "value": 5, "code":"21"
}, {
"name" : "香港", "value": 1, "code":"2912"
}, {
"name" : "澳门", "value": 1, "code":"2911"
}]
}]
};mychart.setOption(option);

1、增加 formatter:function(value){return Math.round(value)}
2、bug confirm & fixed
3、异常特例，这情况下就不没必要用dataRange了，我们增加策略返回基准色吧，但这并不是个好的显示。