## Elementui form自定义正则
```javascript
businessCertNo: [
{ required: true, message: '请输入xxxxxxx', trigger: 'blur' },
{ validator: reg_businessCertNo, trigger: 'blur' },
],
export function reg_businessCertNo(rule, value, callback) {
if (value === "") {
callback(new Error("messge"));
} else {
var chrnum = /^\w{2,20}$/g;
if (!chrnum.test(value)) {
callback(new Error("message"));
}
callback();
}
}
```
标签：自定义,form,Elementui,value,callback,businessCertNo From： https://www.cnblogs.com/newBugs/p/16994579.html