计算文本宽高

// 计算文字的宽高

    NSDictionary *attributesDic = @{NSFontAttributeName: self.labelView.font};

 

    CGRect textRect = [text boundingRectWithSize:CGSizeMake(200, 100) options:NSStringDrawingUsesLineFragmentOriginattributes:attributesDic context:nil];