vue.js提交按钮时简单的if判断表达式示例

if (!this.money)
                {
                    console.log('money',money);
                    Toast({
                        message: '请输入有效的充值金额',
                        duration: 2000
                    });
                }

 else if (!this.moneyReal)
                {
                    console.log('moneyReal',moneyReal);
                    Toast({
                        message: '请输入有效的实付金额',
                        duration: 2000
                    });
                }

else
                {
                    MessageBox.confirm('你确定要充值么?', '提示').then(action => {
                    });
                }

<template>
    <div class="app">

        <mt-field label="充值金额" id="money" placeholder="请输入" v-model="money" type="number"></mt-field>
        <mt-field label="实收金额" id="moneyReal" placeholder="请输入" v-model="moneyReal" type="number"></mt-field>
        <div class="rechage">
            <button @click="chongZhiForMember">充 值</button>
        </div>
    </div>
</template>

<script>
    import { Field, MessageBox, Toast } from 'mint-ui';
    export default {
        data() {
            return {

                // 会员卡余额
            }
        },
        methods: {

            chongZhiForMember() {
                if(!this.money) {
                    console.log('money', money);
                    Toast({
                        message: '请输入有效的充值金额',
                        duration: 2000
                    });
                } else if(!this.moneyReal) {
                    console.log('moneyReal', moneyReal);
                    Toast({
                        message: '请输入有效的实付金额',
                        duration: 2000
                    });
                } else {
                    MessageBox.confirm('你确定要充值么?', '提示').then(action => {

                    });
                }
            }
        },

    }
</script>
<style scoped>
    .app {
        background: #F1F1F1;
        height: 17.78rem;
    }
    
    .rechage button {
        outline: none;
        border: none;
        height: 1rem;
        width: 3.5rem;
        font-size: 0.5rem;
        color: white;
        background: #449EF4;
        border-radius: 0.15rem;
    }
    
    .rechage {
        text-align: center;
        margin-top: 1rem
    }
</style>