file-system-manager 示例统一android、iOS static 路径的写法

pages/API/get-file-system-manager/get-file-system-manager.uvue

@@ -453,9 +453,9 @@
         const fileManager = uni.getFileSystemManager()
 
         fileManager.copyFile({
-          srcPath: UTSAndroid.getResourcePath("static/list-mock/mock.json"),
+          srcPath: "/static/list-mock/mock.json",
           destPath: `${this.copyToBasePath}/a/mock.json`,
-          success: (res : FileManagerSuccessResult) => {
+          success: (res : FileManagerSuccessResult) =>   {
             if (this.logAble) {
               this.log += 'copyFileTest success:' + JSON.stringify(res) + '\n\n'
             }