1.字符串“asdf|www.baisdfa”获得字符串中‘|’之前的字符。

mimangsi

于 2013-12-13 22:51:20 发布

阅读量624

点赞数 1

分类专栏： iOS面试题文章标签： iOS面试题

本文链接：https://blog.youkuaiyun.com/mimangsi/article/details/17309551

版权

iOS面试题专栏收录该内容

0 篇文章

订阅专栏

1.字符串“asdf|www.baisdfa”获得字符串中‘|’之前的字符。

        NSString *str = @"asdf|www.baisdfa";
        //方法1：利用substringWithRange:
        NSRange range1 = NSMakeRange(0, 4);
        NSRange range2 = NSMakeRange(5, str.length - 5);
        NSString *subStr1 = [str substringWithRange:range1];
        NSString *subStr2 = [str substringWithRange:range2];
        NSLog(@"subStr1:%@", subStr1);
        NSLog(@"subStr2:%@", subStr2);
        //方法2：利用substringToIndex:和substringFromIndex:
        NSLog(@"%@", [str substringToIndex:4]);
        NSLog(@"%@", [str substringFromIndex:5]);
        
        /*
         运行结果：
         2013-12-13 22:49:51.985 zqb[951:303] subStr1:asdf
         2013-12-13 22:49:51.988 zqb[951:303] subStr2:www.baisdfa
         2013-12-13 22:49:51.990 zqb[951:303] asdf
         2013-12-13 22:49:51.990 zqb[951:303] www.baisdfa
         */