摘要：
# includeint main(void){ int count,num; double grade,total; num=0; total=0; count=0; printf("Enter grade:"); scanf("%lf",&grade); while(grade>=0){ total=total+grade; num++; if(grade<60) count++; scanf("%lf",&grade); } if(num !=0){ ... 阅读全文
摘要：
# includeint main(void){ int i,m; printf("Enter a number:"); scanf("%d",&m); for(i=2;im/2 && m !=1) printf("%d is a prime number!\n",m); else printf("No!\n"); return 0;} 阅读全文
摘要：
# includeint main(void){ int count,number; count=0; printf("Enter a number:"); scanf("%d",&number); if(number<0)number=-number; do{ number=number/10; count++; }while(number !=0); printf("It contains %d digits.\n",count); return 0;} 阅读全文
摘要：
# includeint main(void){ double value1,value2; char op; printf("Type in an expression:"); scanf("%lf",&value1,&op,&value2); if(op=='+') printf("=%.2f\n",value1 + value2); else if(op=='-') printf("=%.2f\n",value1 - value2); else if(o 阅读全文
摘要：
# include# includeint main(void){ int denominator,flag; double item,pi; flag=1; denominator=1; item=1.0; pi=0; while(fabs(item)>=0.0001){ item=flag*1.0/denominator; pi=pi + item; flag=-flag; denominator=denominator+2; } pi=pi*4; printf("pi=%.... 阅读全文
摘要：
# includeint main(void){ int blank,digit,other; char ch; int i; blank=digit=other=0; printf("Enter 10 characters:"); for(i=1;i<=10;i++){ ch=getchar(); switch(ch){ case ' ': case'\n': blank ++; break; case'0':case'1':case'2':c... 阅读全文
摘要：
# includeint main(void){ int choice,i; double price; for(i=1;i<=5;i++){ printf("[1]Select crisps\n"); printf("[2]Select popcorn\n"); printf("[3]Select chocolate\n"); printf("[4]Select cola\n"); printf("[0]exit\n"); printf("Enter choice:" 阅读全文
摘要：
# includeint main(void){ double value1,value2; char op; printf("Type in an expression:"); scanf("%lf%c%lf",&value1,&op,&value2); switch(op){ case'+': printf("=%.2f\n",value1 + value2); break; case'-': printf("=%.2f\n",value1 - value 阅读全文