解决Xcode10以上编译报错 library not found for "-lstdc++.6"

根据调试方式不同，真机和模拟器文件放置路径不同，分别复制对应的Lib文件到以下路径即可解决。 建议拷贝地址Shift + command + G前往 真机 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib/ 模拟器 dylib放到这个路径 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib/ tdb放到这个路径 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/