iphone - 如何截取 NSString 的部分内容？

Question

@"/News/some news text/" 
@"/News/some other news text/" 
@"/About/Some about text/" 
@"/Abcdefg/Some abcdefg text/some more abcdefg text"

如何剪掉字符串的第一部分，以便最终得到以下字符串？

@"/News/"
@"/News/"
@"/About/"
@"/Abcdefg/"

Answer 1

使用componentsSeparatedByString:来分解字符串:

NSArray *components=[string componentsSeparatedByString:@"/"];
if ([components count]>=2) {
     // Text after the first slash is second item in the array
    return [NSString stringWithFormat:@"/%@/",[components objectAtIndex:1]];
} else {
    return nil; // Up to you what happens in this situation
}