NSString拼接字符串

NSString* string;  // 结果字符串

02	NSString* string1, string2; //已存在的字符串，需要将string1和string2连接起来

03

04

//方法1.

05	string = [NSString initWithFormat:@"%@,%@", string1, string2 ];

06

07

//方法2.

08	string = [string1 stringByAppendingString:string2];

09

10

//方法3 .

11	string = [string stringByAppendingFormat:@"%@,%@",string1, string2];