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用什么方法可以检测微信小程序数据的变化

来源: 微享互动      时间:2018-07-26 15:47:21  

  ZAIvueZHONG,computedSHIYIGEJISUANSHUXING,LEISIYUGUOLVQI,DUIBANGDINGDAOviewDESHUJUJINXINGCHULI,BINGJIANTINGBIANHUA。ERwatchJIANTINGFUZASHUJULEIXINGXUYONGSHENDUJIANTING。ZHEILIANGZHEDOUKEYIZAIvueSHANGSHIXIANJIANCESHUJUDEBIANHUA。ERWEIXINXIAOCHENGXUBUTONGYUvueKEYISHIYONGwatchHEcomputedZUOCHUXIANGYINGDEGAIBIAN。XIAOCHENGXUZHONGZHIYOUHANSHUthis.setData()KEYIJIANCESHUJU,SUOYIXIAOCHENGXUMEICISHUJUGAIBIANXUYAOJIANCESHIDOUBIXUSHOUDONGZHIXINGHANSHUCAIKESHIXIAN。CHUCIZHIWAI,XIAOCHENGXUHAIKEYIFUSHANGZHEILIANGGEGONGNENGJIANCESHUJUBIANHUA。

用什么方法可以检测微信小程序数据的变化

  vue LISHITONGGUO Object.defineProperty LAISHIXIANSHUJUBIANHUAJIANCEDE,JIGAIBIANLIANGDE setter LIZHURUSUOYOUDEBANGDINGCAOZUO,JIUKEYIZAIGAIBIANLIANGBIANHUASHIDAIDONGQITASHUJUDEBIANHUA。SHIJISHANG,ZAIXIAOCHENGXULISHIXIANYAOBI vue LIJIANDAN,YINGWEIDUIYU data LIDUIXIANGLAISHUO,vue YAODIGUIDEBANGDINGDUIXIANGLIDEMEIYIGEBIANLIANG,SHIZHIXIANGYINGSHIHUA。DANSHIZAIWEIXINXIAOCHENGXULI,BUGUANSHIDUIYUDUIXIANGHAISHIJIBENLEIXING,ZHINENGTONGGUO this.setData() LAIGAIBIAN,ZHEIYANGWOMENZHIXUJIANCE data LIMIANDE key ZHIDEBIANHUA,ERBUYONGJIANCE key ZHILIMIANDE key 。

  ZHEILIFENBIEDIAOYONG test2 HE test3 DEZHI,JIANGFANHUIZHIYUDUIYINGDE key ZHIZUHECHENGYIGEDUIXIANG,RANHOUZAIDIAOYONG setData() ,ZHEIYANGJIUHUIDIYICIJISUANZHEILIANGGEZHI,ZHEILISHIYONGLE reduce FANGFA。test2 HE test3 DOUSHIYILAI test DE,ZHEIYANGBIXUZAI test GAIBIANDESHIHOUZAIQIDE setter HANSHUZHONGDIAOYONG test2 HE test3 ZHONGDUIYINGDEHANSHU,BINGTONGGUO setData LAISHEZHIZHEILIANGGEBIANLIANG。

3D彩票网  SHENGMINGLEYIGEBIANLIANGLAIBAOCUNSUOYOUZAIBIANHUASHIXUYAOZHIXINGDEHANSHU,ZAI set SHIZHIXINGMEIYIGEHANSHU,YINWEICISHI this.data.test DEZHIHAIWEIGAIBIAN,SHIYONG setTimeout ZAIXIAYILUNZAIZHIXING。XIANZAIJIUYOUYIGEWENTI,ZENMEJIANGHANSHUTIANJIADAO subs ZHONG。BUZHIDAOGEWEIHAISHIFOUJIDESHANGMIANWOMENSHUODAODEZAI reduce LIDENEILIANGXINGDAIMA。YINWEIZAIZHIXINGJISUAN test1 HE test2 DIYICI computed ZHIDESHIHOU,HUIDIAOYONG test DE getter FANGFA,CIKEJIUSHIYIGEHAOJIHUIJIANGHANSHUZHURUDAO subs ZHONG,ZAI data SHANGSHENGMINGYIGE $target BIANLIANG,BINGJIANGXUYAOZHIXINGDEHANSHUFUZHIJIGAIBIANLIANG,ZHEIYANGZAI getter ZHONGJIUKEYIPANDUAN data SHANGYOUWU target ZHI,CONGERJIUKEYI push JIN subs,YAOZHUYIDESHIXUYAOMASHANGJIANG target SHEWEI null,

  DAOCIWEIZHIYIJINGSHIXIANLE watch HE computed,DANSHIHAIMEIWAN,YOUGEWENTI。DANGTONGSHISHIYONGZHEILIANGZHEDESHIHOU,watch LIDEDUIXIANGDEJIANYETONGSHICUNZAIYU data ZHONG,ZHEIYANGJIUHUIZHONGFUZAIGAIBIANLIANGSHANGDIAOYONG Object.defineProperty ,HOUMIANHUIFUGAIQIANMIAN。YINWEIZHEILIBUXIANG vue LIKEYIJUEDINGLIANGZHEDEDIAOYONGSHUNXU,YINCIWOMENTUIJIANXIANXIE computed ZAIXIE watch,ZHEIYANGKEYI watch computed LIDEZHI。

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