python3.5 opencv3.4 Pycharm远程开发Failed to connect to Mir: Failed to connect to server socket:

环境：本地Win10 Pycharm；远程Ubuntu16.04，python3.5.2，opencv3.4.2 

代码：

import cv2

img = cv2.imread('./1.jpg')
cv2.imshow('title',img)
cv2.waitKey(0)

报错：

Failed to connect to Mir: Failed to connect to server socket: No such file or directory
Unable to init server: Could not connect: Connection refused

(title:6261): Gtk-WARNING **: cannot open display: 

Process finished with exit code 1

原因：

1，可能是Python Interpreter 发生了修改，需要删除之前的Interpreter，重新新建。

2，本地DISPLAY环境变量设置不对或者未设置。

解决：按照原因分析

1，参考：https://blog.csdn.net/qxqxqzzz/article/details/100977232

2，在Pycharm菜单栏: File->Settings->Build, Execution, Deployment->Console->Python Console->Environment Variables和 Run->Edit Configurations...->Configuration->Environment Variables中设置本地显示DISPLAY变量：IP地址：0.0，参考：https://blog.csdn.net/qxqxqzzz/article/details/100556075

3，如果上面两个都做了还不行，比如没有在本地显示图片，只显示Process finished with exit code 0然后就闪退了，请重复操作1和2，重新再试几次。

其他：

https://blog.csdn.net/qxqxqzzz/article/details/100979198