设int a=1,b=2,c=3;,求a<b!=c
时间: 2024-05-17 11:18:02 浏览: 89
表达式 a<b!=c 的求值顺序是先比较 a 和 b 的大小,然后将比较结果与 c 进行不等于运算。根据 C++ 运算符优先级,不等于运算符(!=)的优先级高于小于运算符(<),因此该表达式等价于 (a < b) != c。
根据题目中的赋值,a=1,b=2,c=3,因此 a<b 为真,即 1<2 为真。接下来,真值(1)与 c(也就是 3)进行不等于运算,得到的结果为真,即 1 != 3 为真。因此,整个表达式的结果为真。
相关问题
在C语言中(以32位PC为例),以下5种数据类型的存储空间长度的排列顺序为( )。 A.char< int < long int <= float < double B.char= int < long int <= float < double C.char < int =long int = float<double D.char= int= long int <= float < double
答案是B。char和int都是4个字节,long int是8个字节,float是4个字节,double是8个字节。因此,char和int的存储空间长度相同,而long int和double的存储空间长度相同,但是long int比float长。
Assume a=10, b=23.5, please solve a+b, a-b, a*b, a/b? Assume: a=3,b=4,c=5, please solve a==b!=c and a!=b==c 用C语言写出来
以下是使用C语言解决这些问题的代码示例:
1. 解决a+b, a-b, a*b, a/b:
```c
#include <stdio.h>
int main() {
int a = 10;
float b = 23.5;
printf("a + b = %f\n", a + b);
printf("a - b = %f\n", a - b);
printf("a * b = %f\n", a * b);
printf("a / b = %f\n", a / b);
return 0;
}
```
2. 解决a==b!=c和a!=b==c:
```c
#include <stdio.h>
int main() {
int a = 3;
int b = 4;
int c = 5;
if (a == b && b != c) {
printf("a == b != c\n");
} else if (a != b && b == c) {
printf("a != b == c\n");
} else {
printf("Neither a == b != c nor a != b == c\n");
}
return 0;
}
```
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