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;

}