if a >> b & 1:
时间: 2023-11-09 10:34:52 浏览: 50
If a is significantly larger than b, then it can be written as a >> b. This means that the value of a is much greater than the value of b. The exact definition of "significantly larger" may depend on the context in which the expression is used. For example, in computer programming, a >> b can mean a right shift operation where the bits in the binary representation of a are shifted to the right by b positions.
相关问题
#include<stdio.h> int main() { int number; int a ,b ,c; printf("请输入数字:"); scanf ("%d",&a); printf("请输入数字:"); scanf ("%d",&b); printf("请输入数字:"); scanf ("%d",&c); if((a>b&&a>c)&&(b>c)) printf("%d %d %d",a,b,c); if((a>b&&a>c)&&(c>b)) printf("%d %d %d",a,c,b); if((b>a&&b>c)&&(a>c)) printf("%d %d %d",b,a,c); if((b>a&&b>c)&&(c>a)) printf("%d %d %d",b,c,a); if((c>b&&c>a)&&(b>a)) printf("%d %d %d",c,b,a); if((c>b&&c>a)&&(a>b)) printf("%d %d %d",c,a,b); }哪里错了
你的代码逻辑是正确的,但是在最后缺少了一个返回值,即缺少了 `return 0;`。在 `main` 函数的末尾加上这行代码即可解决该问题。修改后的代码如下:
```c
#include<stdio.h>
int main()
{
int number;
int a, b, c;
printf("请输入数字:");
scanf("%d", &a);
printf("请输入数字:");
scanf("%d", &b);
printf("请输入数字:");
scanf("%d", &c);
if((a > b && a > c) && (b > c))
printf("%d %d %d", a, b, c);
if((a > b && a > c) && (c > b))
printf("%d %d %d", a, c, b);
if((b > a && b > c) && (a > c))
printf("%d %d %d", b, a, c);
if((b > a && b > c) && (c > a))
printf("%d %d %d", b, c, a);
if((c > b && c > a) && (b > a))
printf("%d %d %d", c, b, a);
if((c > b && c > a) && (a > b))
printf("%d %d %d", c, a, b);
return 0;
}
```
这样修改后,代码就可以正确运行了。
if ((startLong >>> 8 & 0xFF) >0&& (startLong >>> 24 & 0xFF) <= 126) { System.out.println("- 子网类型: A"); } else if ((startLong >>> 16 & 0xFF) >128&& (startLong >>> 24 & 0xFF) <= 191) { System.out.println("- 子网类型: B"); } else if ((startLong >>> 24 & 0xFF) >192&& (startLong >>> 24 & 0xFF) <= 223) { System.out.println("- 子网类型: C"); } else { System.out.println("- 无法判断类型"); }帮我修改代码,让它能够判断正确的类型
根据IP地址的第一个字节来判断子网类型可以使用以下代码:
```
if ((startLong >>> 24 & 0xFF) >=1&& (startLong >>> 24 & 0xFF) <= 126) {
System.out.println("- 子网类型: A");
} else if ((startLong >>> 24 & 0xFF) >=128&& (startLong >>> 24 & 0xFF) <= 191) {
System.out.println("- 子网类型: B");
} else if ((startLong >>> 24 & 0xFF) >=192&& (startLong >>> 24 & 0xFF) <= 223) {
System.out.println("- 子网类型: C");
} else {
System.out.println("- 无法判断类型");
}
```
这里我们使用了位运算符 `>>>` 来获取无符号的整数值。同时,我们也修改了判断条件,使其能够正确地判断子网类型。
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