At the end of Listing 4, assoc will return and print a new map, but the original map will be unmodified.

在清单4的末尾处，assoc将返回并打印一个新map，但原始map将保持不变。

youdao

At the end of Listing 4, assoc will return and print a new map, but the original map will be unmodified.

在清单4的末尾处，assoc将返回并打印一个新map，但原始map将保持不变。

youdao