The test variable is only accessible through custom code.

测试变量只能通过通用代码来访问。

youdao

This variable contains the error code of the latest SQL statement executed.

该变量包含最近执行的一条 SQL 语句的错误代码。

youdao

It is also possible to access and change a test variable through custom code.

通过通用代码来访问和更改测试变量，也是可能的。

youdao

Because I might have written some code in which I'm expecting that integer particular variable to have an integer value.

因为我可能写了一些代码,来把一些,变量的类型，指定为。

麻省理工公开课 - 计算机科学及编程导论课程节选

But in general, the choice of variable name is a great way of commenting your code.

但是通常来说，变量名称的选择,是评论你的代码的,一个重要方式。

麻省理工公开课 - 计算机科学及编程导论课程节选

What if I don't change the value of that variable inside of the code?

那么如果在循环内部,我不改变这些变量的值会怎么样？

麻省理工公开课 - 计算机科学及编程导论课程节选

Calculating the addition of the number 2 to a variable, for example, can generate 27 instructions in machine code, many of them repetitive.

FORBES: Hardwired