方法一
onLoad: function () {
this.setData({
height: wx.getSystemInfoSync().windowHeight,
width: wx.getSystemInfoSync().windowWidth
})
}
方法二
.index{
height: 100vh;
width: 100vw;
}
# CSS3引入的"vw"和"vh"基于宽度/高度相对于窗口大小
# "vw" = "view width" "vh" = "view height"
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