ここにまとまってました。 Specifier Description %@ Objective-C object, printed as the string returned by descriptionWithLocale: if available, or description otherwise. Also works with CFTypeRef objects, returning the result of the CFCopyDescription function. %% '%' character %d, %D, %i Signed 32-bit integer (int) %u, %U Unsigned 32-bit integer (unsigned int) %hi Signed 16-bit integer (short) %hu Unsigned 16-bi