程式語言 第三課 part3

/* * =========================================================================== * Compute Area of a Circle : Coefficients are defined in main program. * : Radius and area of circle are printed to screen. * * Copyright (C) 1998 by Mark Austin and David Chancogne. * * This software is provided "as is" without express or implied warranty. * Permission is granted to use this software on any computer system, * and to redistribute it freely, subject to the following restrictions: * * 1. The authors are not responsible for the consequences of use of * this software, even if they arise from defects in the software. * 2. The origin of this software must not be misrepresented, either * by explicit claim or by omission. * 3. Altered versions must be plainly marked as such, and must not * be misrepresented as being the original software. * 4. This notice is to remain intact. * * Written by: Mark Austin January, 1994 * =========================================================================== */
#include /* Standard Input/Output function declarations */#include /* Math functions, such as sqrt(x), and constant M_PI */#include
int main( void ) {float fRadius; /* Radius of circle */float fArea; /* Area of circle */float fVolume; /* Volume of circle */float fPi; /* Variable for "pi" */
/* [a] : Prompt User for "radius of circle" */
printf("============================================\n"); printf("請輸入要計算的圓半徑 (半徑需大於0):"); scanf("%f", &fRadius);
/* [b] : Check that the radius in greater than zero */
if( fRadius <= 0 ) { printf("ERROR >> 圓半徑必需大於0 \n"); exit (1); }
/* [c] : Compute Area and Volume of Circle */
fPi = 4.0*atan( 1.0 ); fArea = fPi*fRadius*fRadius; fVolume = fPi*fRadius*fRadius*fRadius*4.0/3.0;
/* [d] : Print Radius, Area and Volume */
printf("圓半徑 = %8.3f \n", fRadius ); printf("圓面積 = %8.3f \n", fArea ); printf("圓體積 = %8.3f \n", fVolume );
return (0);}

程式語言 第三課 part2

/* * =========================================================================== * Compute Area of a Circle : Coefficients are defined in main program. * : Radius and area of circle are printed to screen. * * Copyright (C) 1998 by Mark Austin and David Chancogne. * * This software is provided "as is" without express or implied warranty. * Permission is granted to use this software on any computer system, * and to redistribute it freely, subject to the following restrictions: * * 1. The authors are not responsible for the consequences of use of * this software, even if they arise from defects in the software. * 2. The origin of this software must not be misrepresented, either * by explicit claim or by omission. * 3. Altered versions must be plainly marked as such, and must not * be misrepresented as being the original software. * 4. This notice is to remain intact. * * Written by: Mark Austin January, 1994 * =========================================================================== */
#include /* Standard Input/Output function declarations */#include /* Math functions, such as sqrt(x), and constant M_PI */#include
int main( void ) {float fRadius; /* Radius of circle */float fArea; /* Area of circle */float fPi; /* Variable for "pi" */
/* [a] : Prompt User for "radius of circle" */
printf("============================================\n"); printf("請輸入要計算的圓半徑 (半徑需大於0):"); scanf("%f", &fRadius);
/* [b] : Check that the radius in greater than zero */
if( fRadius <= 0 ) { printf("ERROR >> 圓半徑必需大於0 \n"); exit (1); }
/* [c] : Compute Area of Circle */
fPi = 4.0*atan( 1.0 ); fArea = fPi*fRadius*fRadius;
/* [d] : Print Radius and Area */
printf("圓半徑 = %8.3f \n", fRadius ); printf("圓面積 = %8.3f \n", fArea );
return (0);}

程式語言 第三課 part1

/*
* ===========================================================================
* Compute Area of a Circle : Coefficients are defined in main program.
* : Radius and area of circle are printed to screen.
*
* Copyright (C) 1998 by Mark Austin and David Chancogne.
*
* This software is provided "as is" without express or implied warranty.
* Permission is granted to use this software on any computer system,
* and to redistribute it freely, subject to the following restrictions:
*
* 1. The authors are not responsible for the consequences of use of
* this software, even if they arise from defects in the software.
* 2. The origin of this software must not be misrepresented, either
* by explicit claim or by omission.
* 3. Altered versions must be plainly marked as such, and must not
* be misrepresented as being the original software.
* 4. This notice is to remain intact.
*
* Written by: Mark Austin January, 1994
* ===========================================================================
*/
#include /* Standard Input/Output function declarations */
#include /* Math functions, such as sqrt(x), and constant M_PI */
#include
int main( void ) {
float fRadius; /* Radius of circle */
float fArea; /* Area of circle */
float fPi; /* Variable for "pi" */
/* [a] : Prompt User for "radius of circle" */
printf("============================================\n");
printf("Please input the circle radius (Radius > 0):");
scanf("%f", &fRadius);
/* [b] : Check that the radius in greater than zero */
if( fRadius <= 0 ) {
printf("ERROR >> Circle radius must be greater than zero\n");
exit (1);
}
/* [c] : Compute Area of Circle */
fPi = 4.0*atan( 1.0 );
fArea = fPi*fRadius*fRadius;
/* [d] : Print Radius and Area */
printf("Radius of Circle = %8.3f \n", fRadius );
printf("Area of Circle = %8.3f \n", fArea );
return (0);
}

程式語言 debug

#include <>

#define PI 3.1415926;

int main( void )
{
/* [a] : Print pi with default floating point output */

printf("My First Program : PI = %f \n, PI);

==========我是改錯分隔線===========

#include <>

#define PI 3.1415926

int main(void)

{
/* [a] : Print pi with default floating point output */

printf("My First Program : PI = %f \n",PI);
}

程式語言 第二課

#include <>

#define PI 3.1415926

int main(void)
{
printf("Approximate value of PI=%f \n",PI");

return(0);
}

程式語言 第一課

#include <>

main()
{
printf("大家好嗎?\n\n一定很好!\n\n");
}