我想知道答案，它是怎么来的？ [英] I want to know the answer and how did it came?

问题描述

#include<stdio.h>
#include<conio.h>
void main()
{
printf("%d",8-6/8*6);
getch();
}

我的尝试：



i尝试了这段代码，答案即将到来8怎么可能是8 cauz 8-6 = 2和2/8 * 6即2/48 = 24

What I have tried:

i tried this code and answer is coming 8 how can it be 8 cauz 8-6=2 and 2/8*6 i.e 2/48 = 24

推荐答案

Quote：

2/8 * 6即2/48 = 24

2/8*6 i.e 2/48 = 24

看起来你需要检查你的小学数学知识。



数学：

8-6 / 8 * 6表示8 - （（6/8）* 6）

8 - （（6/8）* 6）=> 8-（36/8）

8-（36/8）=> 8-4.5 => 3.5



使用C，还有一个技巧：

a除以整数除法的整数，它给出一个整数作为答案，所以6/8 => 0

Looks like you need to check your primary school knowledge in mathematics.

Mathematics:
8-6/8*6 means 8-((6/8)*6)
8-((6/8)*6) => 8-(36/8)
8-(36/8) => 8-4.5 => 3.5

And with C, there is 1 more trick:
a division with integers in an integer division and it gives an integer as answer, so 6/8 => 0

答案是8.

8-6 / 8 * 6



看看运算符的优先级及其相关性。

/，*优先级高于 - 且关联性从左到右。



首先，6 / 8计算结果为0然后0 * 6 = 0

和8-0为8。

Answer is 8.
8-6/8*6

Look at the Precedence of Operator and their Associativity.
/ , * have higher Precedence than - and Associativity is left to right.

So first, 6/8 evaluates to 0 then 0*6 = 0
and 8-0 is 8.

参见 C ++内置运算符，优先级和关联性 [ ^ ]。

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