//index.js //获取应用实例 const app = getApp() Page({ data: { form: { type: '支付宝', name: '顾红伟', phone: '17319450324', isNum: '100.00', }, number: '' }, //事件处理函数 formSubmit: function (e) { let data = this.data.form; data.number = e.detail.value.number; // 判断提现金额是否大于已拥有的金额 if (data.number <= data.isNum) { console.log(data); } else { wx.showToast({ title: '输入错误,请重新输入', icon: 'none', duration: 2000 }) } }, onLoad: function () { }, })