1.导入系统库 添加方式:在Xcode的Project -> Active Target ->Build Phases ->Link Binary With Libraries,添加这几个系统库即可。添加方式:在Xcode的Project -> Active Target -&
1.导入系统库 添加方式:在Xcode的Project -> Active Target ->Build Phases ->Link Binary With Libraries,添加这几个系统库即可。添加方式:在Xcode的Project -> Active Target -&