unittest.cpp

在visual C++环境下编制的一个贪吃蛇游戏

//**************************************
//INCLUDE files for :A Calculator
//**************************************
stdio.h
math.h
//**************************************
// Name: A Calculator
// Description:Calculator Can + - / * ^ SQRT
// By: Tarek Said Mohammed Hefny
//
//
// Inputs:None
//
// Returns:None
//
//Assumes:None
//
//Side Effects:None
//This code is copyrighted and has limited warranties.
//Please see http://www.Planet-Source-Code.com/xq/ASP/txtCodeId.4446/lngWId.3/qx/vb/scripts/ShowCode.htm
//for details.
//**************************************

#include<stdio.h>
#include<math.h>
float add(float x,float y);
float min(float x,float y);
float mul(float x,float y);
float div(float x,float y);
float per(float x,float y);
float power(float x,float y);
float root(float x);
main()


    {
    float
    x,y,sum;
    int
    s;
    ex2:printf("enter the first number: \n");
    scanf("%f",&x);
    ex:printf("enter the selection \n 1-add(+) \n 2-sub(-) \n 3-mul(*) \n 4-div(/) \n 5-per(%) \n 6-pwr(^) \n 7-square root(sqrt) \n:");
    scanf("%d",&s);
    if(s!=7)


        {
        printf("enter the second number(or level of power or all)");
        scanf("%f",&y);
    }
    if(s==1)


        {
        sum=add(x,y);
    }
    else
    if(s==2)


        {
        sum=min(x,y);
    }
    else
    if(s==3)


        {
        sum=mul(x,y);
    }
    else
    if(s==4)


        {
        sum=div(x,y);
    }
    else
    if(s==5)


        {
        sum=per(x,y);
    }
    else
    if(s==6)


        {
        sum=power(x,y);
    }
    else
    if(s==7)


        {
        sum=root(x);
    }
    else


        {
        goto ex;
    }
    printf("the result is %f",sum);
    x=sum;
    printf("\n 1-Anthor sum \n 2-contnou sum \n 3- exit \n:");
    scanf("%d",&s);
    if(s==1)


        {
        goto ex2;
    }
    else
    if(s==2)


        {
        goto ex;
    }
}
float add(float x,float y)


    {
    return(x+y);
}
float min(float x, float y)


    {
    return(x-y);
}
float mul(float x,float y)


    {
    return(x*y);
}
float div(float x,float y)


    {
    return(x/y);
}
float per(float x,float y)


    {
    return((x/y)*100);
}
float power(float x,float y)


    {
    int
    i;
    float
    a;
    a=x;
    for(i=1;i<y;i++)


        {
        x=x*a;
    }
    return(x);
}
float root(float x)


    {
    return(sqrt(x));
}