明明我输入的值是符合规则的，但是点击确定硬是没有任何反馈，原来是通过验证的时候我少了return callback()

错误示范

<template>
  <div class="app-container">
    <el-dialog
      title="礼物信息"
      :visible.sync="dialogVisible"
      :before-close="handleClose"
      top="30px"
    >
      <el-form
        ref="ruleForm"
        :rules="rules"
        :model="ruleForm"
        label-width="120px"
      >
        <el-form-item label="字体颜色" prop="hightFontColour">
          <el-input
            v-model="ruleForm.hightFontColour"
          />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="handleClose">取 消</el-button>
        <el-button
          type="primary"
          @click="submitForm()"
        >确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>

export default {
  data() {
    var validateColor = (rule, value, callback) => {
      console.log('nim', value)
      var regex = /^#([0-9a-fA-F]{6})$/
      if (value === '') {
        return callback(new Error('字体颜色不能为空'))
      }
      setTimeout(() => {
        if (!regex.test(value)) {
          return callback(new Error('例：#2d3eld'))
        }
      }, 1000)
    }
    return {
      dialogVisible: true,
      ruleForm: {
        hightFontColour: ''
      },
      rules: {
        hightFontColour: [
          { required: true, validator: validateColor, trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    handleClose() {
      this.dialogVisible = false
    },
    submitForm() {
      this.$refs.ruleForm.validate((valid) => {
        if (valid) {
          console.log('验证通过')
          this.dialogVisible = false
        }
      })
    }
  }
}
</script>

修复后(记得验证成功要return callback())

var validateColor = (rule, value, callback) => {
      console.log('nim', value)
      var regex = /^#([0-9a-fA-F]{6})$/
      if (value === '') {
        return callback(new Error('字体颜色不能为空'))
      }
      setTimeout(() => {
        if (!regex.test(value)) {
          return callback(new Error('例：#2d3eld'))
        } else {
          return callback() // 补上else并retrun callback()
        }
      }, 1000)
    }