xcode 升级导致的libstdc 6++ 报错的解决办法.分别导入到xcode 的真机和模拟器文件夹中: 其中真机: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib/ 模拟器: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Devel