NSMutableAttributedString *title = [[NSMutableAttributedString alloc] initWithString:@"先去看看"];
NSRange titleRange = {0,[title length]};
[title addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleNone] range:titleRange];
_goButton.titleLabel.textColor = LIGHTGRAYTEXT_COLOR;
_goButton.titleLabel.font = [UIFont systemFontOfSize:12];
[_goButton setAttributedTitle:title
NSRange titleRange = {0,[title length]};
[title addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleNone] range:titleRange];
_goButton.titleLabel.textColor = LIGHTGRAYTEXT_COLOR;
_goButton.titleLabel.font = [UIFont systemFontOfSize:12];
[_goButton setAttributedTitle:title
forState:UIControlStateNormal];