iOS-字符串拼接

Posted 2020-09-12 brucemengbm

//
//  main.m
//
/*
 将两个字符串 NSString * str1 = @"123";
 NSString * str2 = @"abc";
 拼接成?一个完整的字符
 串。
 */
#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{

    /*方法一*/
    
//    NSString * str1 = @"123";
//    NSString * str2 = @"abc";
//    
//    NSString * str3 =[[NSString alloc]initWithFormat:@"%@%@",str1,str2];
//     
//    NSLog(@"%@",str3);
    
    /*方法二*/
    
    NSString * str1 = @"123";
    NSString * str2 = [str1 stringByAppendingString:@"abc"];
    NSLog(@"%@",str2);
    
}