c语言if判断成绩等级,输入grade,输出score怎么做？

用if嵌套，一个if只能输出两个不同的成绩断，自定义要用嵌套的方式 另外，判断条件一定要加前加后，不能不然可能从在算法上的错误，就是大于多少并且小于多少，不能只有大于多少，没有小于多少，最好按顺序做。不要跳跃，

&score );if ( score >= 90 ) printf("优秀\n");else if ( score >= 80 ) printf("良好\n");else if ( score >= 70 ) printf("中等\n");else if ( score >= 60 ) printf("及格\n");else

include "stdio.h"int main(){int score;printf("请输入一个成绩：");scanf("%d",&score);if(score>60 && score<=100)printf("成绩合格\n");else if(score<60 && score>=0)printf("成绩不合格\n");elseprintf("输入的成绩有误\n");} ...

int main() { int score;char grade;printf("请输入成绩：");scanf("%d", &score);switch (score / 10) { case 10:case 9:grade = 'A';break;case 8:grade = 'B';break;case 7:grade = 'C';break;case 6:grade = 'D';break;default:grade = 'E';break;} printf("成绩等级...

include "stdio.h" //输入输出的头文件 main(){ int score; //定义score为整型 char grade; //定义grade为字符型 scanf(%d",&score); //输出score if(score>90) //如果score大于90 grade='5'; //就给grade赋值为‘5’（注意是字符型的）else if (score>70) //如果score...

int main(){ int score, m;scanf("%d", &score);while (score < 0 || score > 100){ printf("Error! Retry!\n");scanf("%d", &score);} m= score / 10;if (m>= 9)printf("Grade is A!\n");switch(m){ case 0: printf("Grade is E!\n"); break;case 1: printf("...

printf("judge1 --> A\n"); else if(score>70) printf("judge1 --> B\n"); else if(score>=60) printf("judge1 --> C\n"); else printf("judge1 --> D\n");}void judge2(

int main(void){ int grade; int score=0; printf("输入成绩："); scanf("%d",&grade); if(grade>60){ printf("恭喜你，通过了！\n"); score +=2; } return 0;}

if(score<0||score>100)printf("Your input is wrong!\n");if(score>=90&&score<=100)printf("Your grade is A.\n");else if(score>=80&&score<90)printf("Your grade is B.\n");else if(score>=70&&score<80)printf("Your grade is C.\n");else if(score>=60&&score<70)pri...

这个很简单啦。设一个变量，以获得输入的数，再加个判断语句用来判断输入是不是错误。后面再加个switch语句，满足case的要求，就输出相应的字母就可以了 程序源代码：include <stdio.h> main( ){ float score；char grade；printf(“请输入学生成绩：”)；scanf(“%f”,&score)；while(score>100||...