/**
*@param NSFontAttributeName文字大小
*@param NSForegroundColorAttributeName文字颜色
*@param NSStrikethroughColorAttributeName删除线的颜色
*@param NSStrikethroughStyleAttributeName删除线样式
*/
NSAtrributedString*attrStr=[[NSAtrributedStringalloc]initWithString:self.priceLabel.text attributes:@{NSFontAttributeName:[UIFontsystemFontOfSize:12],NSForegroundColorAttributeName:[UIColorredColor],NSStrikethroughColorAttributeName:[UIColorgreenColor],NSStrikethroughStyleAttributeName:@(NSUnderlineStyleSingle|NSUnderlinePatternSolid)}];
self.priceLabel.attributedText=attrStr;
