修正IOS登录错误

pages/LoginOrOutDetails/LoginOrOutDetails.js

@@ -58,9 +58,15 @@ Page({
 
   console.log("用户名: "+random_username);
 
+   // 复制本地图片到用户数据路径,如果文件不存在，先复制
+  const UpLoadfilePath = wx.env.USER_DATA_PATH + '/defaultAvatar.png';
+  try {wx.getFileSystemManager().accessSync(UpLoadfilePath);} 
+  catch (e) {
+    wx.getFileSystemManager().copyFileSync('static/image/defaultAvatar.png', UpLoadfilePath);
+  }
 
     wx.uploadFile({
-      filePath: "static/image/defaultAvatar.png",
+      filePath: UpLoadfilePath,
       name: "HeadIconKey",
       url: getApp().globalData.BaseURL+'/API/ApiChangeUserInfo.php',
       formData:{