Chapter VII, on the basis of the function return value 04

Chapter VII, on the basis of the function return value 04

First, what is the return value

After some internal code function column logic processing result obtained.

def func():
    name = 'nick'
    return name


name = func()
print(name)
nick

Second, why have a return value

If you need to get the result of the processing functions for further processing in the program, you will need to function must have a return value

Note :

• return is a function of the end of the mark

• return return value can return any data type

• Returns the number of return value is not restricted, separated by commas

  • 0: Return none

  • A: The return value is itself

  • A plurality of: The return value is a tuple

\# 为什么要有返回值
def max_self(salary_x, salary_y):
    if salary_x > salary_y:
        return salary_x
    else:
        return salary_y


max_salary = max_self(20000, 30000)
print(max_salary*12)

# 函数返回多个值
def func():
    name = 'nick'
    age = 19
    hobby_list = ['read', 'run']
    return name, age, hobby_list


name, age, hobby_list = func()
print(f"name,age,hobby_list: {name,age,hobby_list}")

name,age,hobby_list: ('nick', 19, ['read', 'run'])