C语言 用加法运算，生成两个随机数，用加法求和，成功追加100分。

#include

<iostream>

#include

<ctime>

using

namespace

std

int

main()

{

int

a,b

int

num

int

t=10,d=100

srand((unsigned)time(0))

a=rand()%(d-t)+t

printf("当前随机数为:%d\n",a)

printf("请输入一个数：

")

scanf("%d",&num)

if(a==num)

printf("正确！\n")

else

while(true){

a=rand()%(d-t)+t

b=rand()%(d-t)+t

printf("当前随机数为:%d\n",a+b)

printf("请输入一个数：

")

scanf("%d",&num)

if(num==(a+b)){

printf("正确\n")

break

}

}

return

0

}

#include <iostream>

#include <ctime>

using namespace std

int main()

{

int a,b

int num

int t=10,d=100

srand((unsigned)time(0))

a=rand()%(d-t)+t

printf("当前随机数为:%d\n",a)

printf("请输入一个数： ")

scanf("%d",&num)

if(a==num)

printf("正确！\n")

else

while(true){

a=rand()%(d-t)+t

b=rand()%(d-t)+t

printf("当前随机数为:%d\n",a+b)

printf("请输入一个数： ")

scanf("%d",&num)

if(num==(a+b)){

printf("正确\n")

break

}

}

return 0

}

import java.util.*

public class P

{

public static void main(String[] args)

{

final int ScorePerExam=10

Scanner sc=new Scanner(System.in)

Random r=new Random(Calendar.getInstance()

.getTimeInMillis())

int n=0,right=0,wrong=0,num,sum,answer

boolean exit=false,jixu

String menu

while(!exit)

{

System.out.println("Y、开始测试")

System.out.println("Q、退出系统")

System.out.print("请选择一个菜单：")

menu=sc.nextLine().substring(0,1).toUpperCase()

switch(menu)

{

case "Y":

jixu=true

n=right=wrong=0

while(jixu &&n<10)

{

sum=r.nextInt(101)

num=r.nextInt(101)

System.out.printf("%d+%d=",sum,num)

sum+=num

try

{

answer=Integer.parseInt(sc.nextLine())

if(sum==answer)

{

System.out.println("Correct")

right++

}

else

{

System.out.println("Error")

wrong++

}

}

catch(Exception ex)

{

System.out.println(ex.toString())

}

n++

if(n<10)

{

System.out.print("是否继续？（Y/N）：")

jixu=('Y'==sc.nextLine().toUpperCase().charAt(0) ?

true : false)

}

}

System.out.printf("这次测试共做了%d题，正确%d题，错误%d题，得分%d",

n,right,wrong,ScorePerExam*right)

System.out.println()

break

case "Q":

exit=true

break

default:

System.out.println("无法处理的菜单命令")

break

}

}

sc.close()

}

}

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