picker的省市区选择器怎么实现二级联动?How does the picker's province and city selector achieve secondary linkage?
https://https://developers.weixin.qq.com/s/JmohSwmL7eyn
回答:
https://developers.weixin.qq.com/community/develop/article/doc/0000643f674fa81a18a92b37455413
picker的省市区选择器本来就是联动的
省市区的选择器本来就是三级联动的啊
原文出处:picker的省市区选择器怎么实现二级联动?
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https://developers.weixin.qq.com/community/develop/article/doc/0000643f674fa81a18a92b37455413