Python学习日志 - 6.字典（习题解答）_beef' in 变量和'beef' in 变量.keys()-优快云博客

本文通过几个简单的Python代码片段展示了如何使用字典来存储和检索数据。包括个人基本信息、喜欢的数字、词汇表解释、河流信息等示例。

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  #6-1 人
 
  people 
  = {
 
  "first_name" : 
  "Bill",
 
  "last_name" : 
  "Gate",
 
  "age" : 
  34,
 
  "city" : 
  "Los Angeles"
 
  }
 
  #6-2 喜欢的数字
 
  numbers 
  = {
 
  "bill" : 
  2,
 
  "john" : 
  3,
 
  "mary" : 
  4,
 
  "nick" : 
  5,
 
  "david" : 
  6
 
  }
 
  for key 
  in numbers.keys():
 
  print(
  "
  {0}
   loves number 
  {1}
  ".format(key, numbers[key]))
 
  #6-3&4 词汇表
 
  opcode 
  = {
 
  "
  \\
  n" : 
  "out put a enter key",
 
  "
  \\
  r" : 
  "move the cur to the beginning of the line",
 
  "
  \\
  t" : 
  "out put a tap key",
 
  "main" : 
  "main function of a c progrem",
 
  "int" : 
  "data type refer to integer"
 
  }
 
  for key 
  in opcode.keys():
 
  print(
  "
  {0}
   : 
  {1}
  ".format(key, opcode[key]))
 
  #6-5 河流
 
  river 
  = {
 
  "nile" : 
  "egypt",
 
  "Changjiang" : 
  "china",
 
  "HuangHe" : 
  "china"
 
  }
 
  for key 
  in river.keys():
 
  print(
  "The 
  {0}
   runs through 
  {1}
  ".format(key, river[key]))
 
  for key 
  in river.keys():
 
  print(key)
 
  for key 
  in river.keys():
 
  print(river[key])
 
  #6-7
 
  people1 
  = {
 
  "first_name": 
  "July",
 
  "last_name": 
  "Gate",
 
  "age": 
  34,
 
  "city": 
  "Los Angeles"
 
  }
 
  people2 
  = {
 
  "first_name": 
  "Lucy",
 
  "last_name": 
  "Gate",
 
  "age": 
  34,
 
  "city": 
  "Los Angeles"
 
  }
 
  people3 
  = {
 
  "first_name": 
  "Bill",
 
  "last_name": 
  "Gate",
 
  "age": 
  34,
 
  "city": 
  "Los Angeles"
 
  }
 
  list1 
  = [people1, people2, people3]
 
  for peo 
  in list1:
 
  print(peo[
  'first_name'] 
  + 
  " " 
  + peo[
  'last_name'])