调用方法:Vue.set( target, key, value )

target:要更改的数据源(可以是对象或者数组)

key:要更改的具体数据

value :重新赋的值

具体用法
js代码:
//设置初始状态和值
let j = { id: 0, "progressTime": "", "progressContent": "", "isSet": true, "_temporary": true };
_this.tableInFormData = []
//将对象加入到数组 
this.tableInFormData.push(j);
//项目将isSet变为true 从而v-if来判断输入框可以使用
_this.$set(_this.tableInFormData[index],"isSet",true)        

下面放html代码:

          <el-table-column label="时间"
width="300"
:show-overflow-tooltip="true">
<template slot-scope="scope" >
<span v-if="scope.row.isSet">
<el-date-picker
v-model="form2.progressTime"
type="datetime"
:picker-options="pickerBeginDateBefore"
format="yyyy-MM-dd HH:mm:ss"
value-format="yyyy-MM-dd HH:mm:ss"
placeholder="选择日期">
<!--:disabled="true">-->
</el-date-picker>
</span>
<span v-else>{{changeTimeToDate(scope.row.ProgressTime) }}</span>
</template>
</el-table-column>
<el-table-column prop="ProgressContent"
label="处置进展"
:show-overflow-tooltip="true">
<template slot-scope="scope">
<span v-if="scope.row.isSet">
<el-input size="small" v-model="form2.progressContent" placeholder="请输入内容" ></el-input>
</span>
<span v-else>{{(scope.row.ProgressContent) }}</span>
</template>
</el-table-column>
05-28 18:11