成绩转换
#include<stdio.h>
int main()
{
int score;
while((scanf("%d",&score))!=EOF)
{
if(90<=score&&score<=100)
{
printf("A\n");
}
else if(80<=score&&score<=89)
{
printf("B\n");
}
else if(70<=score&&score<=79)
{
printf("C\n");
}
else if(60<=score&&score<=69)
{
printf("D\n");
}
else if(0<=score&&score<=59)
{
printf("E\n");
}
else if(score<0||score>100)
{
printf("Score is error!\n");
}
}
return 0;
}