环境配置

1. 终端中输入npm i element-ui -S
2. 在main.js中全局引入

使用案例

登录表单

<template>
  <div class="myform">
    <el-form
      :model="ruleForm"
      status-icon
      :rules="rules"
      ref="ruleForm"
      label-width="100px"
    >
      <el-form-item label="用户名" prop="username">
        <el-input v-model="ruleForm.username"></el-input>
      </el-form-item>
      <el-form-item label="密码" prop="password">
        <el-input
          type="password"
          v-model="ruleForm.password"
          autocomplete="off"
        ></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="submitForm('ruleForm')"
          >提交</el-button>
        <el-button @click="resetForm('ruleForm')">重置</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  name: "LoginView",
  data() {
    var checkUser = (rule, value, callback) => {
      console.log("用户名:", value);
      if (value.trim() == "") {
        callback(new Error("请输入用户名"));
      } else if (!/^[0-9a-zA-Z_\u4e00-\u9fa5]{5,10}$/.test(value)) {
        callback(new Error("用户名为5-10位字符或下划线"));
      } else {
        callback();
      }
    };
    var validatePass = (rule, value, callback) => {
      console.log("密码：", value);
      if (value.trim() == "") {
        callback(new Error("请输入密码"));
      } else {
        callback();
      }
    };
    return {
      ruleForm: {
        password: "",
        username: "",
      },
      rules: {
        password: [{ validator: validatePass, trigger: "blur" }],
        username: [{ validator: checkUser, trigger: "blur" }],
      },
    };
  },
  methods: {
    submitForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          alert("submit!");
        } else {
          console.log("error submit!!");
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    }
  },
};
</script>
<style lang="scss">
.myform {
  width: 600px;
  margin: 50px auto;
}
</style>