iOS开发过程中,有时候需要去掉给定字符串两端的空格,避免判断错误,而Java有一个trim()方法,非常好用!
那么,NSString如何实现trim呢?上代码:
NSString *strBeforeTrim = @" trim test ";
NSLog(@"%@", strBeforeTrim);
NSString *strAfterTrim = [strBeforeTrim stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
NSLog(@"%@", strAfterTrim);
打印结果:
2015-01-29 14:27:41.502 TestProject[278:60b] trim test
2015-01-29 14:27:41.505 TestProject[278:60b] trim test