定義

1. 字典定義將所有配對 key:value 放在大括號 " " 中，語法如下：

   name_dict = { key1:vaule1, key2:vaule2, ....}
   

2. 範例：以字典建立用戶 uid 及 name。

   [dywang@deyu zzz]$ cat dict1.py 
   #!/usr/bin/python3
   # coding: utf-8
   
   uid = { 'dywang':1000, 'david':2346, 'linda':1324 }
   print("uid =", uid)
   print("uid[%s] = %d" % ('david', uid['david']))
   

3. 執行結果，取得用戶 david 的 uid 是 2346。

   [dywang@deyu zzz]$ ./dict1.py 
   uid = {'dywang': 1000, 'david': 2346, 'linda': 1324}
   uid[david] = 2346