1、 Get into Official website , You can download the latest Python, Or choose the version you want .
2、 Double click the downloaded program , Start installation . Default for the whole process , Remember to add path On the hook , In this way, you don't have to set environment variables by yourself .
3、 After installation , Enter the computer start interface , Can see IDLE It has been downloaded .
（1） Use it interactively directly from the command line , stay >>> Just input the code directly 
（2） adopt file File to implement , Click on the menu bar File, choice New File, A new editing interface appears , Enter the code directly in it , This method is suitable for inputting a large amount of code 
（1） Click on options --> Configure IDLE
（2） Set the font form and size as shown in the figure 
（3） As shown in the figure, check up , According to the line Numbers and Without saving, you can F5 function 
（1） To set breakpoints , As shown in the figure , Select a row and click Set Breakpoint, This line turns yellow 
（2） Start debugging , choice Debug --> Debugger, The debugging interface pops up 
ALT + 3 ： Batch notes
ALT + 4 ： Batch uncomment
Ctrl + [ ： many （ single ） Shift line code left
Ctrl + ] ： many （ single ） Shift line code right
Tab： After using the incomplete variable, a prompt will appear
ALT + / ： Automatic completion
Alt + p（precious）： Returns the last input
Alt + n（next）： And Alt + p contrary
ALT + Q ： stay IDLE Editor , take Python Code to format the layout
