The last one.Just follow along till you catch up. All right, guys, today we are gonna beobserving the behavior of planaria, aka flatworms.

VOA: standard.other

Well, it turns out on most computers an address of the location and memory, aka a pointer, is itself 32 bits.

好的，它是一个计算机内存地址,或者说一个指针，占32位。

哈佛公开课 - 计算机科学课程节选

A string is a contiguous sequence of characters aka bytes.

字符串就是一串,字符，亦称字节。

哈佛公开课 - 计算机科学课程节选

> So 8 bits, aka 1 byte.

>，8比特，即1个字节。

哈佛公开课 - 计算机科学课程节选

Only the operating system has controlling of byte zero NULL in the computer's RAM and so if a function ever returns null, aka zero, well, something must have gone wrong because that can't possibly belong to me that memory because by human convention zero is owned by the operating system; not by a program I wrote.

只用操作系统在内存中能够控制,字节0，并且如果一个函数返回，或者说0，好的，可能出错了,因为那可能是不属于我的内存,因为惯例上，0是由操作系统拥有的,而不是由我的程序拥有的。

哈佛公开课 - 计算机科学课程节选

This is copy2.c. At the very beginning I, again, demand say something and then I declare s1 to be a string, aka char *, and I store in s1 the string the user types in.

这是copy2。c，在开头打印一句话，然后声明s1是一个字符串，也叫做char，*，然后把用户输入的字符串存储在s1中。

哈佛公开课 - 计算机科学课程节选