【小程序中，或者说在平常的JS中，有没有办法赋予变量优先级 _小程序语言基础 _小程序界面构建】

小程序中，或者说在平常的JS中，有没有办法赋予变量优先级

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小程序语言基础小程序界面构建

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代码

 //是否使用免运费卷
  switch1: function (e) {
    let that = this;
    that.setData({
      isChecked1: e.detail.value
    })
    //检查全局变量中是否包含应付金额，如果没有则将获取到的应付金额放入全局变量，有则直接读取
    if (!app.globalData.price.really.base) {
      app.globalData.price.really.base = (Number(app.globalData.price.product) + Number(app.globalData.price.freight)).toFixed(2);
    }
    if (!app.globalData.price.really.pay) {
      app.globalData.price.really.pay = app.globalData.price.really.base;
    }
    let costPrice = (Number(app.globalData.price.product)).toFixed(2);
    let noCost = (Number(app.globalData.price.product) + Number(app.globalData.price.freight)).toFixed(2);
    if (that.data.isChecked1 == true) {
      app.globalData.price.used.freight = app.globalData.price.freight;
      that.setData({
        freefreight : true,
      })
    } else {
      app.globalData.price.used.freight = '0.00';
      that.setData({
        freefreight: false,
      })
    }
    that.really_pay();
    //检测余额已经抵押完应付金额，再使用免运费卷，致使应付金额小于0
    if (app.globalData.price.really.pay < 0 && app.globalData.price.used.balance > 0) {
      console.log('余额超值')
      app.globalData.price.really.pay = '0.00';
      app.globalData.price.used.balance = (Number(app.globalData.price.used.balance) - Number(app.globalData.price.used.freight)).toFixed(2);
      that.setData({
        reducebalance: app.globalData.price.used.balance
      })
    }
    //检测仅免运费卷、余额被勾选，然后 
    if (!that.data.isChecked1 && that.data.isChecked4 && !that.data.isChecked2 && !that.data.isChecked3 && app.globalData.price.used.balance > 0){
      app.globalData.price.really.pay = '0.00';
      app.globalData.price.used.balance = (Number(app.globalData.price.used.balance) + Number(app.globalData.price.freight)).toFixed(2);
      that.setData({
        reducebalance: app.globalData.price.used.balance
      })
      console.log(app.globalData)
    }
    if (app.globalData.price.really.pay < 0 && app.globalData.price.used.card > 0) {
      console.log('春播卡超额')
      app.globalData.price.really.pay = '0.00';
      app.globalData.price.used.card = (Number(app.globalData.price.used.card) - Number(app.globalData.price.used.freight)).toFixed(2);
      that.setData({
        reducePrice: app.globalData.price.used.card
      })
    }
    if (!that.data.isChecked1 && that.data.isChecked3 && app.globalData.price.used.card > 0) {
      app.globalData.price.really.pay = '0.00';
      app.globalData.price.used.card = (Number(app.globalData.price.used.card) + Number(app.globalData.price.freight)).toFixed(2);
      that.setData({
        reducePrice: app.globalData.price.used.card
      })
      console.log(app.globalData)
    }
    that.setData({
      richPrice: app.globalData.price.really.pay
    })
  },

编辑于2024-05-13