記錄一下 應該能適配所有機型了吧, 忘記哪個機型還有2像素的偏差了. 看著也不明顯.? 不想查了.?
app.js
```
/**
* 當小程序初始化完成時,會觸發(fā) onLaunch(全局只觸發(fā)一次)
? */
? onLaunch: function (options) {
? ? var that = this;
? ? var systemHeight = wx.getSystemInfoSync().statusBarHeight
? ? var data = wx.getMenuButtonBoundingClientRect();
? ? that.globalData.systemHeight = systemHeight;
? ? that.globalData.height = (data.top - systemHeight) * 2 + data.height;
? ? //that.globalData.height = (data.top - systemHeight) * 2 + data.height + 2;? ? ? ? ? ? //加個兩像素吧
? },
? globalData:{
? ???? height:"",
? ???? systemHeight:""
? },
```

index.js
```
/**
? * 生命周期函數(shù)--監(jiān)聽頁面加載
? */
? onLoad: function (options) {
? ? console.log(app.globalData.height)
? ? this.setData({
? ? ? height: app.globalData.height,
? ? ? systemHeight: app.globalData.systemHeight
? ? })
? },
```

index.wxml
```
<view class="globalTop">
? <view style="height:{{systemHeight}}px"></view>
? <view? class="sheight fs_16" style="height:{{height}}px;line-height:{{height}}px">小程序名稱</view>
</view>
```


