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                ## picker-view 嵌入頁面的滾動選擇器 | 屬性名 | 類型 | 說明 | | --- | --- | --- | | value | NumberArray | 數組中的數字依次表示 picker-view 內的 picker-view-column 選擇的第幾項(下標從 0 開始),數字大于 picker-view-column 可選項長度時,選擇最后一項。 | | indicator-style | String | 設置選擇器中間選中框的樣式 | | indicator-class |String | 設置選擇器中間選中框的類名 | | mask-style | String | 設置蒙層的樣式 | | mask-class | String | 設置蒙層的類名 | | bindchange | EventHandle | 當滾動選擇,value 改變時觸發 change 事件,event.detail = {value: value};value為數組,表示 picker-view 內的 picker-view-column 當前選擇的是第幾項(下標從 0 開始) | 注意:其中只可放置<picker-view-column/>組件,其他節點不會顯示。 ~~~ <view> <view>{{year}}年{{month}}月{{day}}日</view> <picker-view indicator-style="height: 50px;" style="width: 100%; height: 300px;" value="{{value}}" bindchange="bindChange"> <picker-view-column> <view wx:for="{{years}}" style="line-height: 50px">{{item}}年</view> </picker-view-column> <picker-view-column> <view wx:for="{{months}}" style="line-height: 50px">{{item}}月</view> </picker-view-column> <picker-view-column> <view wx:for="{{days}}" style="line-height: 50px">{{item}}日</view> </picker-view-column> </picker-view> </view> ~~~ ~~~ const date = new Date() const years = [] const months = [] const days = [] for (let i = 1990; i <= date.getFullYear(); i++) { years.push(i) } for (let i = 1 ; i <= 12; i++) { months.push(i) } for (let i = 1 ; i <= 31; i++) { days.push(i) } Page({ data: { years: years, year: date.getFullYear(), months: months, month: 2, days: days, day: 2, value: [9999, 1, 1], }, bindChange: function(e) { const val = e.detail.value this.setData({ year: this.data.years[val[0]], month: this.data.months[val[1]], day: this.data.days[val[2]] }) } }) ~~~
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