第一步：
找到Windwos系統hosts文件路徑爲：C:\Windows\System32\drivers\etc 的hosts文件
然後打開文件在最下面一行添加：0.0.0.0 account.jetbrains.com
第二步：
打開PyCharm，選擇 Activate code（用激活碼激活）在複製下面激活碼，填入激活碼框
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第三步：
hosts文件：
# Copyright (c) 1993-2009 Microsoft Corp. # # This is a sample HOSTS file used by Microsoft TCP/IP for Windows. # # This file contains the mappings of IP addresses to host names. Each # entry should be kept on an individual line. The IP address should # be placed in the first column followed by the corresponding host name. # The IP address and the host name should be separated by at least one # space. # # Additionally, comments (such as these) may be inserted on individual # lines or following the machine name denoted by a '#' symbol. # # For example: # # 102.54.94.97 rhino.acme.com # source server # 38.25.63.10 x.acme.com # x client host # localhost name resolution is handled within DNS itself. # 127.0.0.1 localhost # ::1 localhost 0.0.0.0 account.jetbrains.com