<div id="app">
<ul>
<li v-for="(item,index)in arr":title="item">
{{index}}{{item }}
</li>
<li v-for="(item,index)in objArr">{{item.name}}
</li>
</ul>
</div>
var app new Vue({
el:"#app",
data:{
arr:[1,2,3,4,5],
objArr:[
{name:"jack"},
{name:"rose"}
]
}
})
<el-table-column
v-for="(item,index) in data"
:width="item.width"
:key="index"
:prop="item.name"
:label="item.displayname">
</el-table-column>
# 没有冒号是字符串
xx="name"
# 冒号是根据item,像方法一样
:xx="item.name"