计算文本高度

+ (CGFloat)heightWithText:(NSString*)text MySize:(CGSize)size FontOfSize:(CGFloat)fontOfSize

{

NSDictionary*dic =@{NSFontAttributeName:[UIFontsystemFontOfSize:fontOfSize]};

//最大范围

//    CGSize size = CGSizeMake(WIDTH - 100, 1000);

//计算文本需的rectangular

CGRectr = [textboundingRectWithSize:sizeoptions:NSStringDrawingUsesLineFragmentOriginattributes:diccontext:nil];

//返回文本的高

returnr.size.height;

}