Matlab运算子

本文介绍了Matlab运算子的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在为明天的累积考试而学习，在上一次考试中我错了以下问题.我希望有人可以向我解释这个问题? (〜m)是什么意思?

I am studying for cumulative exam I have tomorrow and I got the following question wrong on a previous exam. I was hoping someone could explain this question to me? What does (~m) mean?

问题说: 执行以下脚本后，m的值是多少?

The question says: After executing the following script, what is the value of m?

a=1; b=2; m=0; if (~m) m = m+1; if (a-b > 0) m = m+1; else m = m -1; end elseif (m > 1) m = m + 2; else m = m - 2; end

正确答案是0，但是为什么呢?我猜想m = -2

The correct answer is 0, but why? I would have guessed that m = -2

推荐答案

~表示NOT.但是，除非数值等于0，否则所有数值都被视为TRUE.

The ~ means NOT. However, numeric values are all considered TRUE unless they are identically equal to 0.

因此，此逻辑实际执行的命令是:

So, the commands which are actually executed by this logic are:

m = m+1; %Following if (~m) m = m-1; $Following else

此外，代码中还有一个嵌套的if语句.如果您使用了多个级别的缩进，将更易于阅读.

Also, there is a nested if statement in the code. It will be easier to read if you used multiple level indentations.