vue 使用出现如下警告该如何处理？

Question

vue 使用出现如下警告该如何处理？均在data或method中添加变量及方法，还是不行..

Answer 1

register.js代码

var vm = new Vue({
    el: '#app',
    data: {
        // host,
        error_name: false,
        error_password: false,
        error_check_password: false,
        error_phone: false,
        error_allow: false,
        error_sms_code: false,

        username: '',
        password: '',
        password2: '',
        mobile: '',
        sms_code: '',
        allow: false,

        sms_code_tip: '获取短信验证码',
        sending_flag: false, // 正在发送短信标志
        error_name_message: '', // 用户名错误提示
        error_phone_message: '', // 手机号错误提示
        error_sms_code_message: '' // 短信验证码错误
    },
     data(){
    return {
      count: 0
    }
  },
    methods: {
        // 检查用户名
        check_username: function (){
            var len = this.username.length;
            if(len<5||len>20) {
                this.error_name_message = '请输入5-20个字符的用户名';
                this.error_name = true;
            } else {
                this.error_name = false;
            }
            // 检查重名
            if (this.error_name == false) {
                axios.get(this.host + '/usernames/' + this.username + '/count/', {
                        responseType: 'json'
                    })
                    .then(response => {
                        if (response.data.count > 0) {
                            this.error_name_message = '用户名已存在';
                            this.error_name = true;
                        } else {
                            this.error_name = false;
                        }
                    })
                    .catch(error => {
                        console.log(error.response.data);
                    })
            }
        },
        check_pwd: function (){
            var len = this.password.length;
            if(len<8||len>20){
                this.error_password = true;
            } else {
                this.error_password = false;
            }
        },
        check_cpwd: function (){
            if(this.password!=this.password2) {
                this.error_check_password = true;
            } else {
                this.error_check_password = false;
            }
        },
        // 检查手机号
        check_phone: function (){
            var re = /^1[345789]\d{9}$/;
            if(re.test(this.mobile)) {
                this.error_phone = false;
            } else {
                this.error_phone_message = '您输入的手机号格式不正确';
                this.error_phone = true;
            }
            if (this.error_phone == false) {
                axios.get(this.host + '/mobiles/'+ this.mobile + '/count/', {
                        responseType: 'json'
                    })
                    .then(response => {
                        if (response.data.count > 0) {
                            this.error_phone_message = '手机号已存在';
                            this.error_phone = true;
                        } else {
                            this.error_phone = false;
                        }
                    })
                    .catch(error => {
                        console.log(error.response.data);
                    })
            }
        },
        check_sms_code: function(){
            if(!this.sms_code){
                this.error_sms_code = true;
            } else {
                this.error_sms_code = false;
            }
        },
        check_allow: function(){
            if(!this.allow) {
                this.error_allow = true;
            } else {
                this.error_allow = false;
            }
        },
        // 发送手机短信验证码
        send_sms_code: function(){

            // 重新发送短信后，隐藏提示信息
            this.error_sms_code = false;

            if (this.sending_flag == true) {
                return;
            }
            this.sending_flag = true;

            // 校验参数，保证输入框有数据填写
            this.check_phone();

            if (this.error_phone == true) {
                this.sending_flag = false;
                return;
            }

            // 向后端接口发送请求，让后端发送短信验证码
            axios.get(this.host + '/sms_codes/' + this.mobile + '/', {
                    responseType: 'json'
                })
                .then(response => {
                    // 表示后端发送短信成功
                    // 倒计时60秒，60秒后允许用户再次点击发送短信验证码的按钮
                    var num = 60;
                    // 设置一个计时器
                    var t = setInterval(() => {
                        if (num == 1) {
                            // 如果计时器到最后, 清除计时器对象
                            clearInterval(t);
                            // 将点击获取验证码的按钮展示的文本回复成原始文本
                            this.sms_code_tip = '获取短信验证码';
                            // 将点击按钮的onclick事件函数恢复回去
                            this.sending_flag = false;
                        } else {
                            num -= 1;
                            // 展示倒计时信息
                            this.sms_code_tip = num + '秒';
                        }
                    }, 1000, 60)
                })
                .catch(error => {
                    if (error.response.status == 400) {
                        // 展示发送短信错误提示
                        this.error_sms_code = true;
                        this.error_sms_code_message = error.response.data.message;
                    } else {
                        console.log(error.response.data);
                    }
                    this.sending_flag = false;
                })
        },
        // 注册
        on_submit: function(){
            this.check_username();
            this.check_pwd();
            this.check_cpwd();
            this.check_phone();
            this.check_sms_code();
            this.check_allow();


        }
    }
});

Answer 2

register.html代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
    <title>美多商城-注册</title>
    <link rel="stylesheet" type="text/css" href="css/reset.css">
    <link rel="stylesheet" type="text/css" href="css/main.css">
    <script type="text/javascript" src="js/vue-2.5.16.js"></script>
    <script type="text/javascript" src="js/axios-0.18.0.min.js"></script>
<!--    <script type="text/javascript" src="js/hosts.js"></script>-->
</head>
<body>
    <div class="register_con">
        <div class="l_con fl">
            <a class="reg_logo"><img src="images/logo.png"></a>
            <div class="reg_slogan">商品美 · 种类多 · 欢迎光临</div>
            <div class="reg_banner"></div>
        </div>

        <div class="r_con fr">
            <div class="reg_title clearfix">
                <h1>用户注册</h1>
                <a href="/login.html">登录</a>
            </div>
            <div class="reg_form clearfix" id="app" v-cloak>
                <form @submit.prevent="on_submit">
                <ul>
                    <li>
                        <label>用户名:</label>
                        <input type="text" v-model="username" @blur="check_username" name="user_name" id="user_name">
                        <span v-show="error_name" class="error_tip">{{error_name_message}}</span>
                    </li>
                    <li>
                        <label>密码:</label>
                        <input type="password" v-model="password" @blur="check_pwd" name="pwd" id="pwd">
                        <span v-show="error_password" class="error_tip">密码最少8位，最长20位</span>
                    </li>
                    <li>
                        <label>确认密码:</label>
                        <input type="password" v-model="password2" @blur="check_cpwd" name="cpwd" id="cpwd">
                        <span v-show="error_check_password" class="error_tip">两次输入的密码不一致</span>
                    </li>
                    <li>
                        <label>手机号:</label>
                        <input type="text" name="phone" v-model="mobile" @blur="check_phone"  id="phone">
                        <span v-show="error_phone" class="error_tip">{{error_phone_message}}</span>
                    </li>
                    <li>
                        <label>短信验证码:</label>
                        <input type="text" v-model="sms_code" @blur="check_sms_code" name="msg_code" id="msg_code" class="msg_input">
                        <a @click="send_sms_code" href="javascript:;" class="get_msg_code">{{sms_code_tip}}</a>
                        <span v-show="error_sms_code" class="error_tip">{{error_sms_code_message}}</span>
                    </li>
                    <li class="agreement">
                        <input type="checkbox" v-model="allow" @change="check_allow" name="allow" id="allow" checked="checked">
                        <label>同意”美多商城用户使用协议“</label>
                        <span v-show="error_allow" class="error_tip2">请勾选同意</span>
                    </li>
                    <li class="reg_sub">
                        <input type="submit" value="注 册" name="">
                    </li>
                </ul>
                </form>
            </div>

        </div>

    </div>

    <div class="footer no-mp">
        <div class="foot_link">
            <a href="#">关于我们</a>
            <span>|</span>
            <a href="#">联系我们</a>
            <span>|</span>
            <a href="#">招聘人才</a>
            <span>|</span>
            <a href="#">友情链接</a>
        </div>
        <p>CopyRight © 2016 北京美多商业股份有限公司 All Rights Reserved</p>
        <p>电话：010-****888    京ICP备*******8号</p>
    </div>
    <script type="text/javascript" src="js/register.js"></script>
</body>
</html>

Answer 3

咋写了两个data?把上面data对象里的属性移到下面data里去

Answer 4

昨晚加的忘记改了，怎么移这样吗？哎我是搞后端的，被vue搞得特难受

var vm = new Vue({
    el: '#app',
    // data: {
    //
    // },
     data(){
        // host,
        error_name: false,
        error_password: false,
        error_check_password: false,
        error_phone: false,
        error_allow: false,
        error_sms_code: false,

        username: '',
        password: '',
        password2: '',
        mobile: '',
        sms_code: '',
        allow: false,

        sms_code_tip: '获取短信验证码',
        sending_flag: false, // 正在发送短信标志
        error_name_message: '', // 用户名错误提示
        error_phone_message: '', // 手机号错误提示
        error_sms_code_message: '' // 短信验证码错误
        return {
          count: 0
        }
  },