找到了Xcode10模拟器和真机运行的办法了
1.将libstdc++_sim.zip解压，放到目录
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/
将 libstdc++.dylib_sim.zip解压，放到目录
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib/
作者：王垒iOS
链接：https://www.jianshu.com/p/12558d39ba08
來源：简书
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