#import <Foundation/Foundation.h> int main(int argc, const char * argv[]) { @autoreleasepool { // insert code here... NSSize s=NSMakeSize(10, 15);//NSSize其实就是CGSize //这种方式比较常见 CGSize s2=CGSizeMake(10, 15); NSLog(@"%@",NSStringFromSize(s2)); } return 0;}