实现代码

html代码：

<el-form
   	class="form-content"
    ref="register"
    :model="register"
    :rules="rules"
    >
    <el-form-item prop="phone">
        <i class="el-icon-phone"></i>
        <el-input v-model="register.phone" placeholder="手机号:"></el-input>
    </el-form-item>
    <el-form-item prop="psw">
        <i class="el-icon-lock"></i>
        <el-input v-model="register.psw" placeholder="输入密码:" type="password" show-password></el-input>  
    </el-form-item>
    <el-form-item prop="checkPass">
        <i class="el-icon-lock"></i>
        <el-input v-model="register.checkPass" placeholder="再次确认密码:" type="password" show-password></el-input>  
    </el-form-item>
    <el-form-item>
        <el-button class="btn-login" type="primary" @click="registers('register')">Register</el-button>
    </el-form-item>
</el-form>

js代码：

data () {
	// 密码验证
    var validatePass = (rule,value,callback)=>{
        if(value === ''){
            callback(new Error('请输入密码'))
        }else{
            if(this.register.checkPass !== ''){
                this.$refs.register.validateField('checkPass')
            }
            callback()
        }
    };
    // 再次确认密码验证
    var validateCheckPass = (rule,value,callback)=>{
        if (value === '') {
            callback(new Error('请再次输入密码'));
        } else if (value !== this.register.password) {
            callback(new Error('两次输入密码不一致!'));
        } else {
            callback();
        }
    };
    // 手机号码验证
    var validatePhone = (rule,value,callback)=>{
        var reg=11 && /^((13|14|15|16|17|18|19)[0-9]{1}\d{8})$/;
        if (value === '') {
            callback(new Error('请输入手机号'));
        } else if (!reg.test(value)) {
            callback(new Error('手机号码格式不正确!'));
        } else {
            callback();
        }
    };


	return {
         register: {
             phone: '',
             psw:'',
             checkPass:'',
         },
         rules:{
             phone:[{validator: validatePhone, trigger: 'blur'}],
             psw:[{validator: validatePass, trigger: 'blur'}],
             checkPass:[{validator: validateCheckPass, trigger: 'blur'}]
         },
     }
}