1.用Xcode打开如下2个xcspec文件：
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/Specifications/iPhoneOSPackageTypes.xcspec
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Xcode/Specifications/MacOSX Package Types.xcspec
2.把MacOSX Package Types.xcspec中Identifier为com.apple.package-type.mach-o-dylib的item复制到iPhoneOSPackageTypes.xcspec
3.把MacOSX Product Types.xcspec中Identifier为com.apple.product-type.library.dynamic的item复制到iPhoneOSProductTypes.xcspec
以上为真机，模拟器类似，路径在：
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Library/Xcode/Specifications/
1.把/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/Templates/Project Templates/Framework & Library/Cocoa Touch Static Library.xctemplate整个文件夹复制并改名为Cocoa Touch Dynamic Library.xctemplate
2.修改Description中的"a static library"为"a dynamic library"
修改Identifier中的"cocoaTouchStaticLibrary"为"cocoaTouchDynamicLibrary"
修改Description中的".static"为".dynamic"
1.Installation Directory设置为@executable_path/