如果输入的字母是不小写，显示消息刚进入角色并不是一个小写字母。

If the entered letter is not lowercase, display the message the character just entered is not a lowercase letter.

youdao

如果输入的字符是一个小写字母的字符，显示消息刚进是一个小写字母。

If the entered character is a lowercase letter, display the message the character just entered is a lowercase letter.

youdao

首先，让我们尝试构建在上下文中突出显示匹配项部分的小型regexp(匹配后面跟一个小写字母的t字符)。

Start by trying to build the trivial regexp given back in the Highlight matches in their context section, which matched the t character followed by a lowercase letter.

youdao

b The repulsive term goes as some constant lower case b divided by R to the n. N is not the quantum number.

这种斥力很想一个固定的小写字母,被R到n分开的话，N不是量子数。

麻省理工公开课 - 固态化学导论课程节选

Now, once you know each of those, you can now do 25 more upper case letters and 25 more lower case letters then there are some other stuff like punctuation and things you see on the keyboard.

一旦你知道两者中的任何一个，你就知道了另外25个,大写字母和小写字母,标点和在键盘上的,各种符号也有ASCII码。

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