Python _ function parameter transfer

In this example, we will discuss the parameter passing problem of the function.
The python version I use is 3.3.2.

For functions:

             fun(    ==      main()

Information.

The printed information here is:

hello,Hongten

For the following use cases:

  fun(a=1, b=None, c=None, *     (       fun(a=     fun(    ==      main()

When the passing parameters are fun (a = 'one') and fun ('one'), the values are copied to parameter, the effects of all two parameters are the same:

Of course, we can also assign values to parameters B, c, and * args.

For example:

  fun(a=1, b=None, c=None, *     (       fun(,1,2,(    ==      main()

In this way, values are assigned to parameters B, c, and args.

Running effect:

one,1,2,(,)

In the preceding column, we cannot bypass the parameters a, B, and c in front of * args to copy * args:

For example:

  fun(a=1, b=None, c=None, *     (       fun(args=(    ==      main()

Running effect:

, line 21,  <module>, line 18, =(

However, for parameters a, B, and c, you can assign values in this way.

For example:

  fun(a=1, b=None, c=None, *     (       fun(c=(), b=2, a=[1,2,3    ==      main()

Running effect:

[1, 2, 3],2,hongten,()