在一个应用程序中，一个键(msg1)同一个字符串值(Hello)相关联。

In an application program, a single key (msg1) is associated with a single string value (Hello).

youdao

第一个字符串定义了表，第二个字符串定义了键。

The first string defines the table and the second defines the key.

youdao

行键是表的主键，通常是一个字符串。

The row key is the primary key of the table and is typically a string.

youdao

Now I could have made a key, keys don't have to be strings, but as it happened, I didn't.

现在我可以建立一个键了，键并不一定是字符串，但这儿既然已经是字符串了。

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