是否是要用到接口来做呢,要用wx.request吗,麻烦能用代码讲解吗?
图一是首页那里,图二是另一个页面,感谢,感谢
是否是要用到接口来做呢,要用wx.request吗,麻烦能用代码讲解吗?
全局参数例子:
https://developers.weixin.qq.com/s/CMccoXmN7TBz
在app.js定义字段
App({
// 全局定义支出字段
expenditure: 100,
})
index.js
Page({
data: {
expenditure: 0
},
onShow() {
this.setData({ expenditure: getApp().expenditure })
}
})
index.wxml
<view>支出:{{expenditure}}元</view>
<navigator url="/index1/index">去index1</navigator>
index1.js
Page({
data: {
expenditure: 0
},
onShow() {
this.setData({ expenditure: getApp().expenditure })
},
pay100() {
this.setData({ expenditure: getApp().expenditure += 100 })
}
})
index1.wxml
<view>支出:{{expenditure}}元</view>
<view bindtap="pay100">支出100元</view>