本人有些部分转自 CSDN北上之龙博客http://blog.csdn.net/g1jun/article/details/26502567

1.去除字符串首尾的空格和换行符

- (NSString *)removeSpaceAndNewline:(NSString *)str

{

NSString *temp = [str stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];

NSString *text = [temp stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet ]];

return text;

}

2.去除字符串中所有的空格和换行符(包括中间和首尾)

- (NSString *)removeSpaceAndNewline:(NSString *)str

{

NSString *temp = [str stringByReplacingOccurrencesOfString:@" " withString:@""];

temp = [temp stringByReplacingOccurrencesOfString:@"\r" withString:@""];

temp = [temp stringByReplacingOccurrencesOfString:@"\n" withString:@""];

return temp;

}

3.如果要去除某些歌词文件的换行符保留空格以便转换为数组

- (NSString *)removeSpaceAndNewline:(NSString *)str

{

//    NSString *temp = [str stringByReplacingOccurrencesOfString:@" " withString:@""];

NSString *temp = [str stringByReplacingOccurrencesOfString:@"\r" withString:@""];

temp = [temp stringByReplacingOccurrencesOfString:@"\n" withString:@""];

return temp;

}

调用

NSString * lrcStr = [self removeSpaceAndNewline:lrc];

NSLog(@"lrcStr = %@",lrcStr);

NSArray * lrcArr = [intro componentsSeparatedByString:@"  "];//截取空格注意这里是两个空格，如果是单空格，可能会把单个词截取了，因为单个词之间可能有一个空格，而句子之间是双空格

NSLog(@"lrcArr = %@",lrcArr);