Vue校验时报Cannot read property ‘validate’ of undefined错误

 Error in v-on handler: "TypeError: Cannot read properties of undefined (reading 'validate')"

解决：

1、传值的时候，要带引号

<el-button type="primary" @click="onExec('formData')">执行SQL 

2、传的值要和ref一致

 

3、验证语句写法

 this.$refs[formName].validate((valid) =>{})