字符串重组，字符串的插入，替换，删除，拼接

来源：互联网发布：b1ued同志交友软件编辑：程序博客网时间：2024/05/18 02:30
/*    <span style="white-space:pre"></span>1>多个数据拼接成一个字符串2>字符串的末尾追加新的字符3>在指定的范围插入字符串4>使用新的字符替换原有的字符5>在字符串中删除特定的某些字符6>去掉字符串中的空格 */#import <Foundation/Foundation.h>int main(int argc, const char * argv[]) {    @autoreleasepool {                    int year = 2015;        int month = 07;        int day = 20;        NSString * address = @"北京市";        NSString * dateAndAddress = [[NSString alloc] initWithFormat:@"%d年%d月%d日 地址:%@",year,month,day,address];        NSLog(@"%@",dateAndAddress);                      NSString * str2 = @"qianfeng";        // qianfeng.com        NSString *str3 = [str2 stringByAppendingString:@".com"];        NSLog(@"str3 %@  str2 %@",str3,str2);                        NSString * str4 = @"www..com";        // www.baidu.com        NSRange range = {3,2};        NSString * str5 = [str4 stringByReplacingCharactersInRange:range withString:@"-baidu-"];        NSLog(@"str5 %@",str5);                        NSString * str6 = @"www.baidu.com";              NSString * str7 = [str6 stringByReplacingOccurrencesOfString:@"." withString:@"-"];        NSLog(@"str7 %@",str7);                //5>在字符串中删除特定的某些字符        NSString * str8 = @"www..baidu..com";              NSString * str9 = [str8 stringByReplacingOccurrencesOfString:@"." withString:@""];        NSLog(@"str9 %@ str8 %@",str9,str8);                       NSString * str10 = @"www baidu com";        NSString * str11 = [str10 stringByReplacingOccurrencesOfString:@" " withString:@""];        NSLog(@"str11 %@",str11);    }    return 0;}
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