dateformatter专题

ValueError: DateFormatter found a value of x=0, which is an illegal date. This usually occurs becau

问题： ValueError: DateFormatter found a value of x=0, which is an illegal date. This usually occurs because you have not informed the axis that it is plotting dates, e.g., with ax.xaxis_date() 解决办法：

[性能优化]深度优化DateFormatter

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[性能优化]轻度优化DateFormatter

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