react-native-picker實現三級聯動

首先參考開源項目地址：https://github.com/beefe/react-native-picker 代碼如下： import Picker from 'react-native-picker' //構造數據 _createDateData=() =>{ let dataArray=[]; for( let i= 0;i< 100;i++){ let secondArray=[] for

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