That's pretty good 'cause now, I can pretty much cover my American keyboard pretty effectively both upper case, lower case, and a whole bunch of punctuation. For other languages as in aside, there are other encoding schemes when there are more characters.

那是相当不错的，它可以包含整个美式键盘中的字符,包括大小写字母和一连串标点,对于其他语言，当涉及更多字符时就会有其他的编码体系。

哈佛公开课 - 计算机科学课程节选

7 So, okay. So lower case A would be 97 65 and upper case A would be 65.

好吧，小写字母a是7,而大写字母A是。

哈佛公开课 - 计算机科学课程节选

Or if I can put the case for them slightly anachronistically, these are two sons of the upper bourgeois who feel degraded by the mendacity and hypocrisy of the world they see around them.

或如果我将他们,稍微错置于其它时间，他们是上层中产阶级的两名儿子,他们觉得,因为虚伪和伪善而降尊了,因那充斥着他们周围所见的世界。

耶鲁公开课 - 政治哲学导论课程节选

And if you've typed in l when you should've 1 typed a 1, or a 1 when you should've typed an l, you're likely to miss it. If you've made a mistake with upper and lower case. Things like that. So just be very careful looking at that.

如果你本来想打，1，的时候,却输成了，l，或者打，l，的时候输成了，你很可能注意不到这个错误,如果你把大小写弄混了也是一样,要注意这个错误。

麻省理工公开课 - 计算机科学及编程导论课程节选

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。

哈佛公开课 - 计算机科学课程节选