在有负数的运算中使用了无符号变量。

An unsigned variable was used in an operation with a negative number.

youdao

符号变量在程序中起着至关重要的作用。

Symbolic variable plays a very important role in program.

youdao

本文从地图语言的角度，分析了构成地图符号的符号变量种类和功能。

In this article the category and the function of map symbol variables are analyzed from the point of view of map language.

youdao

So this plus plus is sort of shorthand notation for incrementation. So just add 1 to this variable's value, so now socks on feet is of course 1 and so next.

那么这个++符号是递增排序的,所以仅仅是对这个变量加一，现在袜子在脚上是一，那么下一个也是这样。

哈佛公开课 - 计算机科学课程节选