微信JSSDK 报错wx is not defined?

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微信JSSDK 报错wx is not defined?WeChat JSSDK reports error wx is not defined?

The NPM package of wechat jssdk, version 1.6.0, is used. It is imported to the page to be used. Because an error will be reported in the test environment, resulting in a white screen. After investigation, it may be the cause of Wx jssdk, so in Wx Config was printed and found to be undefined. Please help to see what the reason is. Some codes and screenshots of error reporting are as follows.

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