有些情况就是需要查找某个字符串并高亮，但有些需求就是需要全局模糊查找，找到符合的字符串并高亮。造了个小轮子

效果图

#pragma mark -- 设置在一个文本中所有特殊字符的特殊颜色+ (NSMutableAttributedString *)setAllText:(NSString *)allStr andSpcifiStr:(NSString *)keyWords withColor:(UIColor *)color specifiStrFont:(UIFont *)font{    NSMutableAttributedString *mutableAttributedStr = [[NSMutableAttributedString alloc] initWithString:allStr];    if (color == nil) {        color = [UIColor redColor];    }    if (font == nil) {        font = [UIFont systemFontOfSize:17];    }            for (NSInteger j=0; j<=keyWords.length-1; j++) {                NSRange searchRange = NSMakeRange(0, [allStr length]);        NSRange range;        NSString *singleStr = [keyWords substringWithRange:NSMakeRange(j, 1)];        while            ((range = [allStr rangeOfString:singleStr options:0 range:searchRange]).location != NSNotFound) {                //改变多次搜索时searchRange的位置                searchRange = NSMakeRange(NSMaxRange(range), [allStr length] - NSMaxRange(range));                //设置富文本                [mutableAttributedStr addAttribute:NSForegroundColorAttributeName value:color range:range];                [mutableAttributedStr addAttribute:NSFontAttributeName value:font range:range];            }    }    return mutableAttributedStr;}复制代码