Objective-C 字串相加 (stringByAppendingString )

使用 stringByAppendingString:

#import <Foundation/Foundation.h>
int main(){
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    NSString *firstName = @"Wwfwwf";
    NSString *lastName = @"Liao";
    NSString *fullName = [[firstName stringByAppendingString: @" "] stringByAppendingString: lastName];
    NSLog(@"my name is %@\n", fullName);
    [pool drain];
    return 0;
}

result:

my name is Wwfwwf Liao

使用 stringWithFormat:

NSString *fullName = [NSString stringWithFormat: @"%@ %@", firstName, lastName];