Original link: http://www.cnblogs.com/Waterclouds/p/8031697.html
The PyCharn version currently in use is 4.0.4, and the code completion function cannot be used during use. After Google search, only two modifications are needed to achieve code completion.
1 Select File-Setting-Inspections to find the corresponding language and tick it. For example, if I use Python, then I will choose Python
2 If the settings in the first step do not take effect, please check whether File-Power-Save-Mode is checked. If it is checked, please cancel it. This is an energy-saving mode of PyCharm.
