关于前端:elementui-elinput-无法使用-vmodel修饰符

应用 blur 办法在失去焦点时进行 trim（）

<el-form
    ref="form"
    :model="formData"
    :rules="formRules"
    style="width:80%;margin-top:20px;"
    size="small"
    label-width="100px"
>
    <el-form-item label="以后节点" prop="moduleId">
        <el-input 
        readonly
        v-model="formData.moduleId" 
        @blur="formData.moduleId=$event.target.value.trim()"
        ></el-input>
    </el-form-item>
    <el-form-item label="帮忙 URL">
        <el-input 
        placeholder="帮忙 URL"
        @blur="formData.helpUrl=$event.target.value.trim()"
        v-model="formData.helpUrl"></el-input>
    </el-form-item>
    <el-form-item label="模块形容">
        <el-input 
        type="textarea" 
        placeholder="编辑模块形容..."
        @blur="formData.moduleDesc=$event.target.value.trim()"
        v-model="formData.moduleDesc"></el-input>
    </el-form-item>
    <el-form-item v-if="control.save">
        <el-button type="primary" @click="save"> 保留 </el-button>
    </el-form-item>
</el-form>