python如何在函数内修改全局变量

# 2.如何在一个函数内部修改全局变量# 通过使用global对全局变量进行修改。# n=0# def foo():#   global n#   n=100# foo()  # print(n)x = 0def outer():  x = 1  def inner():   nonlocal x   x = 2   print("inner:", x)   inner()  print("outer:", x) outer()print("global:", x)

# x = 0# def outer():#   x = 1#   def inner():#    nonlocal x#    x = 2#    print("inner:", x) #   inner()#   print("outer:", x) # outer()# print("global:", x)