single-character的意思|示意

Hence, if you want to define a VARCHAR column that can store up to 10 characters, you have to define the column as VARCHAR (40) because a single character requires from 1 to 4 bytes.

因此，如果想定义一个最多存储10个字符的varchar列，那么必须将这个列定义为VARCHAR(40)，因为一个字符占用1到4字节。

Only single-character options are accepted; each character in the string represents an option that is known to the program.

只能接受单个字符的选项；字符串中的每个字符代表程序已知的一个选项。

You can also use "." (a period) to match any single character.

您还可以使用“.” （点号）匹配任何单个的字符。

In this case, I join together a sequence of single-character strings contained in a tuple using the colon character.

在本例中，使用冒号将tuple包含的由单个字符构成的字符串序列连接在一起。

These two simple words will have a very lasting effect for the rest of the season and will impact nearly every single character.

简简单单的这两个词会对这一季剩下的剧情产生很大的影响，也会对每一个角色产生冲击。

Trigraph sequences are replaced by corresponding single-character internal representations.

三字符序列被替换成相应的内部表示单个字符。