python函數01

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# 沒有參數和返回的函數def say_hi():    print(" hi!")say_hi()say_hi()# 有參數，無傳回值def print_sum_two(a, b):    c = a + b    print(c)print_sum_two(3, 6)def hello_some(str):    print("hello " + str + "!")hello_some("China")hello_some("Python")# 有參數，有傳回值def repeat_str(str, times):    repeated_strs = str * times    return repeated_strsrepeated_strings = repeat_str("Happy Birthday!", 4)print(repeated_strings)# 全域變數與局部 變數x = 60def foo(x):    print("x is: " + str(x))    x = 3    print("change local x to " + str(x))foo(x)print(‘x is still‘, str(x))

　　輸出：

 hi! hi!9hello China!hello Python!Happy Birthday!Happy Birthday!Happy Birthday!Happy Birthday!x is: 60change local x to 3x is still 60

　　

python函數01