C语言 小学一年级的算术题答:include <stdio.h> void main(void){ int va1,va2,a=1,b=1,value;char operate;inx:while (a!=0,b!=0){ printf("Enter expression:\n");scanf("%d%c%d",&va1,&operate,&va2);switch (operate){ case '+':value=va1+va2;printf("%d+%d=%d\n",va1,va2,value);break;case...