增加部分公共函数

utils/app.js

@@ -2,4 +2,20 @@ export function openApp(url){
 	// #ifdef H5
 	window.location.href='com.hnsiyao.duanju://'
 	// #endif
+}
+export function isAndroid(){
+	const systemInfo = uni.getSystemInfoSync();
+	const isA=systemInfo.platform === 'android'
+	isAndroid=()=>{
+		return isA
+	}
+	isA
+}
+export function isIos(){
+	const systemInfo = uni.getSystemInfoSync();
+	const isIOS = /iOS/.test(systemInfo.platform);
+	isIos=()=>{
+		return isIOS
+	}
+	return isIOS
 }