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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ~~~ properties: { // 期刊號 index:{ type:Number, // 當改變屬性的值時,微信小程序觸發observer函數 observer:function(newVal, oldVal, changedPath){ console.log(newVal); console.log(oldVal); console.log(changedPath); } } }, ~~~ >不要在[observer中改變屬性]()自身的值,不然會觸發observer,進行遞歸調用,因為observer只要,值更新就會調用; 如果要改變可以在data,中定義一個變量[進行中轉]() ~~~ properties: { // 期刊號 index:{ type:String, // 當改變屬性的值時,微信小程序觸發observer函數 observer:function(newVal, oldVal, changedPath){ let value =newVal<10?"0"+newVal:newVal; this.setData({ _index:value }) } } }, data: { month:0, year:0, _index:"" }, ~~~
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                              哎呀哎呀视频在线观看