python pip安裝錯誤 ConnectTimeoutError錯誤解決辦法

python pip安裝錯誤 ConnectTimeoutError錯誤詳情：（注：pycharm裏面安裝第三庫也會出現這樣的錯誤）python ……（此處略去n個字）阿里雲 During handling of the above exception, another exception occurred:url ……（此處略去n個字）spa pip._vendor.requests.packa

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