nsstring字符串重组

//

//  main.m

//  05-字符串重组

//

//  Created by apple on 14-3-20.

//  Copyright (c) 2014年 apple. All rights reserved.

//

 

#import <Foundation/Foundation.h>

 

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

{

 

    @autoreleasepool {

        

        //1.多个数据拼接成一个字符串

        int year = 1988;

        int month = 4;

        int day = 15;

        NSString * date = [NSString stringWithFormat:@"%d年%d月%d日",year,month,day];

        NSLog(@"date %@",date);

        NSString * address = @"昌平区,金燕龙";

        NSString * dateAndAddrss = [NSString stringWithFormat:@"%@地址:%@",date,address];

        NSLog(@"dateAndAddress %@",dateAndAddrss);

        

        //2.字符串的末尾追加新的字符

        NSString * str1 = @"www.";

        NSString * str2 = [str1 stringByAppendingString:@"itcast.cn"];

        NSLog(@"str2 %@ str1 %@",str2,str1);

        

        //3.在制定的范围追加字符串

        NSString * str3 = @"www.cn";

        NSRange range = {4,0};

        // 4 location代表的时从哪个索引开始插入,length 代表的意思可以覆盖几个字符

        NSString * str4 = [str3 stringByReplacingCharactersInRange:range withString:@"itcast."];

        NSLog(@"str4 %@",str4);

        

        //4.使用新的字符,替换原有的字符

        NSString * str5 = @"www.itcast.cn";

        NSString * str6 = [str5 stringByReplacingOccurrencesOfString:@"w" withString:@"a"];

        NSLog(@"str6 %@",str6);

        

        //5.在字符串中删除特定的某些字符 胡汉三 hhs

        NSString * str7 = @"www---.itcatst.--cn";

        NSString * str8 = [str7 stringByReplacingOccurrencesOfString:@"-" withString:@""];

        NSLog(@"str8 %@",str8);

        

        //6.去掉字符串中的空格

        NSString * str9 = @"www  .itcat  .cn";

        NSString * str10 = [str9 stringByReplacingOccurrencesOfString:@" " withString:@""];

        NSLog(@"str10 %@",str10);

        

        

        

    }

    return 0;

}