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				@@ -0,0 +1,18 @@ 
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				+export default { 
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				+	data() { 
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				+		return { 
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				+			h:uni.getSystemInfoSync().windowHeight,//屏幕高度 
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				+			mt:uni.getSystemInfoSync().statusBarHeight + 44,//自定义头部组件高度(使用自定义头部组件的上边距) 
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				+			th:50+uni.getSystemInfoSync().safeAreaInsets.bottom//底部tabbar高度 
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				+		} 
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				+	}, 
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				+	onShow(){ 
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				+		uni.getSystemInfo({ 
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				+			success:res=>{ 
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				+				if(res.platform === 'android'){ 
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				+					this.th = res.screenHeight - res.windowHeight - res.statusBarHeight - 48; 
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				+				} 
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				+			} 
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				+		}) 
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				+	} 
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				+} 
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