1.提取URL

NSMutableAttributedString*strMutable=[[NSMutableAttributedString alloc]initWithString:str];

[strMutable addAttribute:NSFontAttributeName value:label.font range:NSMakeRange(0, str.length)];

[strMutable addAttribute:NSForegroundColorAttributeName value:label.textColor range:NSMakeRange(0, str.length)];

NSDataDetector*detect=[[NSDataDetector alloc] initWithTypes:NSTextCheckingTypeLink error:nil];

NSArray*matches=[detect matchesInString:str options:0 range:NSMakeRange(0, str.length)];

for(NSTextCheckingResult*result in matches)

{

if (result.resultType==NSTextCheckingTypeLink) {

[strMutable addAttribute:NSLinkAttributeName value:@"http://www.baidu.com" range:result.range ];

}

}

if ([matches count]>0) {

label.attributedText=strMutable;

}

2.提取字符串

NSRange startRange = [str rangeOfString:@"

NSRange endRange = [str rangeOfString:@">"];

NSRange range = NSMakeRange(startRange.location + startRange.length, endRange.location - startRange.location - startRange.length);

NSString *result = [str substringWithRange:range];

NSMutableAttributedString *str = [[NSMutableAttributedString alloc]initWithString:[NSString stringWithFormat:result]];

// NSRange contentRange = {1,[str length] - 1};

NSRange contentRange = {1,[str length]-1};

[str addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:contentRange];

[str addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:NSMakeRange(1,[str length]-1)];

label.attributedText = str;