作业三-5应用分支与循环结构解决问题——输入五级成绩
![](http://images0.cnblogs.com/blog/570517/201310/30224651-cdb548bfbf944325bc7809865ab4242c.png)
#include <stdio.h> int main(void) { char ch; printf("输入成绩:"); ch=getchar(); switch(ch){ case 'A': printf("90-100\n"); break; case 'B': printf("80-89\n"); break; case 'C': printf("70-79\n"); break; case 'D': printf("60-69\n"); break; case 'E': printf("0-59\n"); break; default: printf("Invalid input\n"); break; } return 0; }