程式語言 練習

70 points

程式語言 第五課 part2

/*
* ======================================================================
* Print Days of the work week and weekend
*
* Copyright (C) 1998 by Mark Austin and David Mazzoni.
*
* 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 : David Mazzoni.
* ======================================================================
*/

#include

int main( void ) {
enum day { Sun = 1, Mon, Tue, Wed, Thur, Fri, Sat };
enum day eDay;

eDay = Sun;
printf("Day %4d is on the weekend\n", eDay);
eDay = Mon;
printf("Day %4d is a work day \n", eDay);
eDay = Tue;
printf("Day %4d is a work day \n", eDay);
eDay = Wed;
printf("Day %4d is a work day \n", eDay);
eDay = Thur;
printf("Day %4d is a work day \n", eDay);
eDay = Fri;
printf("Day %4d is a work day \n", eDay);
eDay = Sat;
printf("Day %4d is on the weekend\n", eDay);
}

程式語言 第五課 part1

/*
* =====================================================================
* Print size of basic data types in C.
*
* Copyright (C) 1994-96 by Mark Austin and David Mazzoni.
*
* 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 : D. Mazzoni and M. Austin January 1994
* =====================================================================
*/

#include

int main( void ) {
char cName;
float fMiles;
int iCount;
double dDist;

/* [a] : Announce program */

printf( "STORAGE1.C : print size of basic data types \n" );
printf( "------------------------------------------- \n" );

/* [b] : Now list variables and their addresses. */

printf( "\"cName\" occupies %2i bytes of storage\n", sizeof( char ));
printf( "\"fMiles\" occupies %2i bytes of storage\n", sizeof( float ));
printf( "\"iCount\" occupies %2i bytes of storage\n", sizeof( int ));
printf( "\"dDist\" occupies %2i bytes of storage\n", sizeof( double ));

}

程式語言 debug 3

#include /* Standard Input/Output function declarations */
#include
int main( void )
{
float fRadius; /* Radius of circle */
float fArea; /* Area of circle */
/* [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( 2.0 );
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);

}

===============================================================================

#include /* Standard Input/Output function declarations */
#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 2

#define PI 3.1415926
int main( void ) {
/* [a] : Print pi with default floating point output */
printf("My First Program : PI = %f \n, PI" );
/* [b] : Now experiment with conversion specifications */
printf("My First Program : PI = %14.7f \n", PI );
printf("My First Program : PI = %14.7e \n", PI );
printf("My First Program : PI = %14.7E \n", PI );
printf("My First Program : PI = %14.7g \n", PI );
printf("My First Program : PI = %14.7G \n", PI );
printf("My First Program : PI = %-14.7f \n", PI );
printf("My First Program : PI = %-14.7e \n", PI );
}

=======================================================================

#include
#define PI 3.1415926
int main( void ) {
/* [a] : Print pi with default floating point output */
printf("My First Program : PI = %f \n, PI" );
/* [b] : Now experiment with conversion specifications */
printf("My First Program : PI = %14.7f \n", PI );
printf("My First Program : PI = %14.7e \n", PI );
printf("My First Program : PI = %14.7E \n", PI );
printf("My First Program : PI = %14.7g \n", PI );
printf("My First Program : PI = %14.7G \n", PI );
printf("My First Program : PI = %-14.7f \n", PI );
printf("My First Program : PI = %-14.7e \n", PI );
}