HELPPPPPP ......这是我的用户输入的温度读数代码，但我真的不确定我的代码有什么问题。当我编译时，它说“ else之前的预期表达”。我需要帮助，在此先感谢。
#include <stdio.h>
main()
{
double lowest = 38;
double temp;
char bpower;
printf("Enter temperature(C):");
scanf("%lf", &temp);
if(temp<lowest)
{
lowest = temp;
}
printf("Backup power on? (Y/N):");
fflush(stdin);
scanf("%c", &bpower);
if(temp < 50);
{
printf("Normal mode of operation\n");
printf("Continue to read the next temperature\n");
}
else
{
if(temp < 80)
{
printf("Turn on circulating fan\n");
printf("Continue to read the next temperature\n");
}
else
{
if(bpower == 'N')
{
printf("Turn off equipment\n");
printf("Lowest temperature is %.2f", lowest);
}
else
{
printf("Continue to read the next temperature\n");
}
}
}
}
最佳答案
您的if语句之一中有一个分号。更改此：
if(temp < 50);
{
printf("Normal mode of operation\n");
printf("Continue to read the next temperature\n");
}
对此：
if(temp < 50)
{
printf("Normal mode of operation\n");
printf("Continue to read the next temperature\n");
}