first commit

未命名1.cpp

@@ -0,0 +1,79 @@
+/*随机输出2个数算法--Apxar*/
+/*随机输出2个数算法--Apxar*/
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+int main(void)
+{
+
+int i,j,k=2,num1,num2,sum=0,answer,score=0,xiabiao,temp;
+ char fuhao[2]={'+','-'};
+ srand((int)time(0));
+
+ for(i=1;i<=10;i++)
+ {
+ 
+xiabiao=rand()%2;
+ num1=rand()*50/32767;
+ num2=rand()*50/32767;
+if(xiabiao==0)
+{ sum=num1+num2;}
+ else
+{ sum=num1-num2;} 
+ 
+ if(sum>=0&&sum<=50)
+{
+j=2; k=1;
+
+ printf("\n(%d).\n",i);
+ printf("%7d\n",num1);
+ printf("%c\n",fuhao[xiabiao]);
+ printf("%7d\n",num2);
+ printf("------------\n");
+ printf("请输入正确答案 ");
+ scanf("%d",&answer);
+
+ if(sum==answer)
+
+ {
+ printf("\n结果:你输入的答案正确! \n\n");
+ score+=10;
+ }
+
+ else
+ {
+ while(j<=3)
+{
+ printf("\n答案错误,请重新输入:");
+ scanf("%d",&answer);
+if(sum==answer)
+ {
+printf("\n结果:你输入的答案正确! \n\n");
+k++;
+ 
+if(k==2)
+{ score+=7;}
+ else if(k==3)
+{ score+=5;}
+
+ break;
+
+}
+ else
+
+ { k++;}
+ j++;
+
+}
+ if(j>3)
+printf("\n该题正确答案为:%d\n",sum);
+
+}
+
+}
+ else
+
+ i--;
+ }
+ printf("\n共%d道题目,你的总分为%d\n \n",i-1,score);
+}