16进制转8进制c蓝桥杯
时间: 2024-06-14 20:06:48 浏览: 55
以下是一个C语言实现的十六进制转八进制的例子:
```c
#include <stdio.h>
#include <string.h>
void hexToOct(char hex[]) {
int i, j, len, dec = 0, oct = 0;
len = strlen(hex);
// 将十六进制转换为十进制
for (i = 0; hex[i] != '\0'; i++) {
if (hex[i] >= '0' && hex[i] <= '9') {
dec = dec * 16 + (hex[i] - '0');
} else if (hex[i] >= 'A' && hex[i] <= 'F') {
dec = dec * 16 + (hex[i] - 'A' + 10);
} else if (hex[i] >= 'a' && hex[i] <= 'f') {
dec = dec * 16 + (hex[i] - 'a' + 10);
}
}
// 将十进制转换为八进制
i = 1;
while (dec != 0) {
oct = oct + (dec % 8) * i;
dec = dec / 8;
i = i * 10;
}
printf("转换后的八进制数为:%d\n", oct);
}
int main() {
char hex[100];
printf("请输入一个十六进制数:");
scanf("%s", hex);
hexToOct(hex);
return 0;
}
```