Python通过字典映射函数实现switch

# -*- encoding=utf-8 -*-
def aaa():
  print '这是aaa函数'
def bbb():
  print '这是bbb函数'
def ccc():
  print '这是ccc函数'
if __name__ == '__main__':
  choose_function = {'A': aaa, 'B': bbb, 'C': ccc}
  # 选择aaa函数
  name = 'A'
  if name in choose_function:
    fun = choose_function[name]
    fun() # 执行aaa函数
  else:
    print '选择函数错误，A->aaa,B->bbb,C->ccc'

# -*- encoding=utf-8 -*-
aaa = ['aaa', 'bbb', 'ccc']
bbb = [1, 2, 3, 4, 5, 6]
ccc = []
if __name__ == '__main__':
  choose_list = {'A': aaa, 'B': bbb, 'C': ccc}
  # 选择bbb列表
  name = 'B'
  if name in choose_list:
    fun = choose_list[name]
    print bbb # 打印bbb列表
  else:
    print '选择列表错误，A->aaa,B->bbb,C->ccc'