code show as below:

**validateCode:[{validator:(rule, value, callback)=>{
    if (!value) { 
      callback(new Error('you have to input code')) 
    } else if(this.radioValue=="mobile"){
      validatingCo(this.user.mobile,value).then((res)=>{
        if(!res.code==20000){
           return callback(new Error('the code is wrong or expired'))
         } else{
             callback()
         }
      })
    }
    else{
       validatingCo(this.user.email,value).then((res)=>{
         if(!res.code==20000){
           return  callback(new Error('the code is wrong or expired'))
         } else{
           callback()
         }
       })
    }
  }, trigger:'blur'}]

Unfortunately, it doesn't execute and there are no errors. I want to know how to deal with it.