用c语言编程统计学生成绩，大于等于90的为A，小于90大于等于80为B，小于80大于等于70为C

Question

如题所述

Answer 1

#include "stdio.h"
int main(void)
{
int x,y;
printf("please x:");
scanf("%d",&x);
if(x<60)
{
printf("E\n");
}
if(x>=60&&x<70)
{
printf("D\n");
}
if(x>=70&&x<80)
{
printf("C\n");
}
if(x>=80&&x<90)
{
printf("B\n");
}
if(x>=90&&x<100)
{
printf("A\n");
}
}
经测试，合格！！！本回答被网友采纳

Answer 2

#include<stdio.h>
int main(){
int score;
scanf("%d",&score);
if(score>=90){
printf("A\n");
}else if(score>=80){
printf("B\n");
}else if(score>=70){
printf("C\n");
}else if(score>=60){
printf("D\n");
}else{
printf("E\n");
return 0;
}
}

Answer 3

#include "stdio.h"

int main()

{

int x;

printf("please x:");

scanf("%d",&x);

if(x<60)

printf("E\n");

if(x>=60&&x<70)

printf("D\n");

if(x>=70&&x<80)

printf("C\n");

if(x>=80&&x<90)

printf("B\n");

if(x>=90&&x<100)

printf("A\n");

}