初始化链表时，在大括号内放置一组逗号分隔的关键字：值对，这也是字典输出的方式。

Placing a comma-separated list of key:value pairs within the braces adds initial key:value pairs to the dictionary; this is also the way dictionaries are written on output.

youdao

初始化链表时，在大括号内放置一组逗号分隔的关键字：值对，这也是字典输出的方式。

Placing a comma-separated list of key:value pairs within the braces adds initial key:value pairs to the dictionary; this is also the way dictionaries are written on output.

youdao