给需要清空的值添加一个判断就行：

eg:

placeholder="请选择项目组"

clearable

@change="project_team_change"

>

:key="item._id"

:label="item.project_team_name"

:value="item._id">

placeholder="请选择项目"

clearable

>

:key="item._id"

:label="item.project_name"

:value="item._id">

async project_team_change(project_team_id) {

this.project_code_list = await this.$getProjectCodeInfo({'project_team_id': project_team_id});

if (this.pageData.project_id) {

this.pageData.project_id = '';

}

},

注:

// if (this.pageData.project_id) {

// let fields = this.$refs['pageDataRef'].fields;

// for