1.用于展示列表数据
2.语法：v-for="(item, index) in xxx" :key="yyy"
3.可遍历：数组、对象、字符串（用的很少）、指定次数（用的很少）
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DOCTYPEhtml><html><head><metacharset="UTF-8"/><title>基本列表title><scripttype="text/javascript"src="../js/vue.js">script>head><body><divid="root"><h2>人员列表（遍历数组）h2><ul><liv-for="(p,index) of persons":key="index">
{{p.name}}-{{p.age}}
li>ul><h2>汽车信息（遍历对象）h2><ul><liv-for="(value,k) of car":key="k">
{{k}}-{{value}}
li>ul><h2>测试遍历字符串（用得少）h2><ul><liv-for="(char,index) of str":key="index">
{{char}}-{{index}}
li>ul><h2>测试遍历指定次数（用得少）h2><ul><liv-for="(number,index) of 5":key="index">
{{index}}-{{number}}
li>ul>div><scripttype="text/javascript">
Vue.config.productionTip =falsenewVue({el:'#root',data:{persons:[{id:'001',name:'张三',age:18},{id:'002',name:'李四',age:19},{id:'003',name:'王五',age:20}],car:{name:'奥迪A8',price:'70万',color:'黑色'},str:'hello'}})script>html>
