About the problem of value selection in dynamic form loop

Problem:
Existing parameters

It needs to be dynamically rendered into the form.

The v-model value problem of each attribute of the form.

定义form对象
	searchForm {
		sendCode:'',
		newHoseFlag:'',
		beginEndDate:''
	}
template中直接 v-model= 'searchForm[item.field]'

But how to define v-model if there are two objects in each time object?

for example:

	searchForm {
    
    
		sendCode:'',
		newHoseFlag:'',
		beginDate:{
    
    begainDate:'',endDate:''},
		StartDate:{
    
    startDate:'',endDate:''},
		metatDate:{
    
    metatDate:'',metaEndDate:''},
	}
template为
<el-form-item :label="item.name" :prop="item.field">
  <el-date-picker
      v-model="？？？"
      type="date"
      placeholder="开始日期">
    </el-date-picker>
    <el-date-picker
      v-model="？？？"
      type="date"
      placeholder="结束日期">
    </el-date-picker>
    </el-form-otem>

循环渲染，可通过以下方式定义。
v-model ="searchForm [item.field][object.keys(searchForm[item.field])[0]]"
v-model ="searchForm [item.field][object.keys(searchForm[item.field])[1]]"

``