Since yesterday installed the SQL, my Pycharm seems to slow down a lot.
Several years ago, the computer is the host of the garbage, did not bring a laptop, open a Pycharm not easy.
Sleepy night will continue, the results so my dad thought I sleep, turn off the computer, give me in tears on.
Later, about a half-hour of computer Indexing now. . . . Really served
Now the issue is resolved, File-> Setting->
Before the red part has a lot Package (Package):
When a large-scale program referred to several different programs to develop, use the same class name is quite possible, in java program development in order to avoid the above events, provides a conceptual (package) a package, use it simple, just use the package in the first line written procedures keyword to declare a package. According to my own understanding is that other programmers to write various classes, packaged as a library, but the library but many are less than the good performance of the computer may be a little better, my computer or forget it, so we created a new project, the need to re-download the library, PyQt5 and cv2
<- the red line is I wrote it myself .py file
Pretty strange, cv2 library can not install always fails result of the installation of a opencv-python results it can be used.
Baidu under:
OpenCV is based on a BSD license (open source) issue of cross-platform computer vision library that can run on Linux, Windows, Android and Mac OS operating systems. It is lightweight and efficient - consists of a series of C functions and a small amount of C ++ classes, while providing an interface Python, Ruby, MATLAB language, etc., many common algorithms implemented image processing and computer vision. For python, in the time required to write a reference opencv library to import cv2. Which, cv2 opencv is a C ++ namespace name, use it to indicate the call is developed in C ++ opencv interface.
What if the new library needs to be re-setting the plus sign in the upper right corner of a map of where to find, very convenient.