希望可以校验token格式 I hope that the token format can be verified

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当遇到token乱传值时使用验证token会直接报错：invalid memory address or nil pointer dereference
例如：当token传值1.1.1时不会报错会提示校验失败，当传值111时候直接报错

When a token is randomly transferred, an error will be reported when the token is used to verify the value：invalid memory address or nil pointer dereference
For example: when the token value is 1.1.1, no error will be reported but a verification failure will be prompted. When the value 111 is passed, an error will be reported directly.

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我发现了问题所在,因为这里的token返回了一个nil所以后面无法获取而报错，需要给一个空的*Token
I discovered the problem. Because the token here returns a nil, it cannot be obtained later and an error is reported. An empty *Token needs to be given.

[Michael Fridman]

In Go, it's best practice to check the error, and if err != nil you typically don't trust the other returned values.

I suggest checking the err in the example above.

[cccqcccq]

In Go, it's best practice to check the error, and if err != nil you typically don't trust the other returned values.在 Go 中，最佳做法是检查错误， if err != nil 通常不信任其他返回的值。

I suggest checking the err in the example above.我建议在上面的例子中检查一下 err 。

Please check my latest reply, this file is parser.go in the framework