iOS 64位静态链接库

https://www.jianshu.com/p/486e3b737707

https://stackoverflow.com/questions/44635297/setting-an-ios-static-lib-architecture-to-arm64-using-xcode

xcodebuild -project 44635297.xcodeproj -target 44635297 -configuration Release clean build -sdk iphoneos 命令行编译工程

lipo -info librapidjson.a 查看支持的CPU体系结构