IOS开发－UI学习－NSMutableAttributedString（带属性的字符串）的使用

带属性的字符串：

 NSString *aa = @"hellochinaIloveYou!";

     NSMutableAttributedString *mas = [[NSMutableAttributedString alloc]initWithString:aa];

 //    设置字符串字属性

     UIFont *font = [UIFont fontWithName:@"Arial" size:35.0f];

     [mas addAttribute:NSFontAttributeName value:font range:NSMakeRange(, )];

 //    设置字体颜色

     [mas addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:NSMakeRange(, )];

 //    设置背景色

     [mas addAttribute:NSBackgroundColorAttributeName value:[UIColor grayColor] range:NSMakeRange(, )];

 //    设置字符间距

     [mas addAttribute:NSKernAttributeName value:[NSNumber numberWithFloat:10.1] range:NSMakeRange(, )];

 //    设置删除线线型

     [mas addAttribute:NSStrikethroughStyleAttributeName value:[NSNumber numberWithInt:] range:NSMakeRange(, )];

 //    设置删除线颜色

     [mas addAttribute:NSStrikethroughColorAttributeName value:[UIColor greenColor] range:NSMakeRange(, )];

 //    设置字体倾斜

     [mas addAttribute:NSObliquenessAttributeName value:[NSNumber numberWithFloat:0.6] range:NSMakeRange(, )];

 //    拉伸字体

     [mas addAttribute:NSExpansionAttributeName value:[NSNumber numberWithFloat:0.9] range:NSMakeRange(, )];

 //    设置下划线

     [mas addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInt:NSUnderlineStyleSingle] range:NSMakeRange(, )];

 //    设置下划线颜色

     [mas addAttribute:NSUnderlineColorAttributeName value:[UIColor whiteColor] range:NSMakeRange(, )];

 //    设置搂空字体

     [mas addAttribute:NSStrokeWidthAttributeName value:[NSNumber numberWithInt:] range:NSMakeRange(, )];

 //    搂空字体设置颜色

     [mas addAttribute:NSStrokeColorAttributeName value:[UIColor redColor] range:NSMakeRange(, )];

 //    设置阴影

     NSShadow *shadow = [[NSShadow alloc]init];

     shadow.shadowBlurRadius = ;

     shadow.shadowColor = [UIColor colorWithRed:0.502 green:0.023 blue:0.134 alpha:1.000];

     shadow.shadowOffset = CGSizeMake(-0.1, 0.1);

     [mas addAttribute:NSShadowAttributeName value:shadow range:NSMakeRange(, )];

 //    设置印刷字体

     [mas addAttribute:NSTextEffectAttributeName value:NSTextEffectLetterpressStyle range:NSMakeRange(, )];

     UILabel * label = [[UILabel alloc]initWithFrame:CGRectMake(, , , )];

 //    label.text = mas.string;

     label.attributedText =mas;

     [self.view addSubview:label];