snn1410的专栏

问题：       NSMutableArray *array = [[NSMUtableArray alloc]initwithObjects ：@"苹果"，@“菠萝”，@“香蕉”，@“西瓜”，@“橘子”，nil];然后我定义一个NSMutableString *string  我想将array里面的内容放以@“苹果，菠萝，香蕉，西瓜，橘子”的方式到string里面，应该怎么处理呢？

1. NSData 与 NSStringNSData－> NSStringNSString *aString = [[NSString alloc] initWithData:adataencoding:NSUTF8StringEncoding]; NSString－>NSDataNSString *aString = @"1234abcd";N

NSString* string; // 结果字符串02NSString* 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

NSString *str = [NSString alloc]init];str = @"1234567890";NSRange r ;r = [str rangeOfString : textview.text];if(r.location != NSNotFound){    NSLog(@"found at location = %d, length = %d"

NSArray* arr=[@"asd;asdasd;dfd;gd;s;as;daf"componentsSeparatedByString:@";"];2    for (int i=0; i3        NSString* str=[arr objectAtIndex:i];