Python entry loop for loop (note 2-1)

There are two kinds of loops in Python, like C++ and Java: for loops and while loops

Introduce the for loop here.
For example:
in C++ and Java

for( int i = 0 ; i < 10 ; i++）
{
循环体
}

/* means ten cycles. */

It should be written
like this in Python : there is no such thing as i<10 in Python, so we need to use the rouge() function to determine the number of loops.
Here we only range () function to solve the problem of cycles , more detailed range () function description, please click

range( n, m) function // n, m are all and can only be integer functions.
According to the figure below, the range() function returns a similar list, or tuple, which is actually an object type from n to m- 1. At this point, the number of cycles is solved.

The difference between arrays (lists, tuples, dictionaries) in Python, please click here.

Every time you complete a loop, i will move backward by one position, so there is no need to operate on i

 for i in range(0,10)://i为无意义的变量名可更改
    	print(i)
    	......
    	......

**/\*循环体的每行，不论是自动添加还是手打的，行首必须要有一个缩进，\*/**

The for loop can also be used

in this way. The code implementation in PyCharm and the code in Python.exe (IDE) are still different.
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