Update download()
Update download()

mickelfeng/wechat-1,flybird119/wechat-1,fatihwk/wechat,tenstone/wechat,oamzn/wechat,CoolCloud/wechat-1,bspiritxp/wechat,shanyimin/wechat,wochicaomei/wechat,gududefengzhong/wechat-1,imjerrybao/wechat-1,heivin/wechat,YeFatBoy/wechat,qitianchan/wechat-1,zhaojianhui129/wechat,hgonlywj/wechat,let5sne/wechat,liwanwei/wechat,internet-dev/wechat,mojiajuzi/wechat