Analysis of three kinds of functions of commas in Python

The examples in this article describe the three functions of commas in python. Share to everyone for your reference. The specific analysis is as follows:

A recent study of the comma problem with Python has not been understood.

1. The use of commas in parameter passing:

This is a situation where there is nothing to be puzzled about, which is the comma between parameters when the parameter or argument is passed

For example def ABC (A,B) or ABC (1,2)

2. The use of commas in type conversion is mainly the conversion of tuples

For example:

?

1 2 3 4 5 6 7 8 9 10 11 12-13

>>> a=11 >>> b= (a) >>> b >>> b= (A,) >>> B (one,) >>> b= (a,22) > >> b >>> b= (a,22,) >>> B (11, 22)

You can see that a comma is required to convert to a tuple type only when there is only one element in the B-tuple

3. The comma in the output statement print in the magical power:

Example:

?

1 2 3 4 5 6 7 8 9 10 11-12

>>> for I in Range (0,5): ... print I ... 0 1 2 3 4 >>> for I in Range (0,5): ... print I, ... 0 1 2 3 4

It is obvious that the print statement defaults to the following line with a newline plus a comma, and then a blank.

I hope this article will help you with your Python programming.