大佬帮忙看下map对象的问题？

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大佬帮忙看下map对象的问题？Can you help me to look at the problem of the map object?

Because there is not much JS foundation, I don't know how to solve this problem. After SetData in the applet, the map object is always empty. There's no problem with the print console, but wxml renders with {{map. Get()}} and has no value

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