Calls to Python functions

First, call the procedure:
1 Find First Name
2 calling code by name
　　
The return value of a function has several ways:
0->none (default)
1-> returns 1 values
More than one tuple

Return value Note: Return value does not have a type limit
1. No return: Return none, equivalent to return none
2. Return a value: Returns the value
3. Return Val1,val2,val3: Return (VAL1,VAL2,VAL3)

Three, three forms of function call
  1 Statement form: foo ()
  2 expression form: 3*len (' Hello ')
  4 parameters for another function: Range (len (' Hello '))

# statement Form Res # form of an expression # Res1=my_max (ON) # Res2=my_max (res1,3) Res2 # a function call can be used as a parameter to another function Print (Res2)

Calls to Python functions