10、字符串与数字操作全解析

work3

于 2025-07-05 13:44:19 发布

阅读量27

点赞数

CC 4.0 BY-SA版权

分类专栏： Objective-C编程实战指南文章标签：字符串比较 NSMutableString 字符串搜索

本文链接：https://blog.youkuaiyun.com/work3/article/details/150315657

Objective-C编程实战指南专栏收录该内容

49 篇文章 ¥499.90

订阅专栏¥69.90

会员秒杀 ¥9.9 重磅福利

超级会员免费看

字符串与数字操作全解析

1. 字符串比较

在编程中，字符串比较是常见的操作。以下是一段用于字符串比较的代码：

#import <Foundation/Foundation.h>
int main (int argc, const char * argv[]){
    @autoreleasepool {
        NSString *myString1 = @"A";
        NSString *myString2 = @"B";
        NSString *myString3 = @"A";
        BOOL isEqual = [myString1 isEqualToString:myString2];
        if(isEqual)
            NSLog(@"%@ is equal to %@", myString1, myString2);
        else
            NSLog(@"%@ is not equal to %@", myString1, myString2);
        if([myString1 isEqualToString:myString2])
            NSLog(@"%@ is equal to %@", myString1, myString2);
        else
            NSLog(@"%@ is not equal to %@", myString1, myString2);
        if([myString1 isEqualToString:myString3