1.1主題：存檔、讀檔
程式碼：
#include<stdio.h>//外掛printf() fprintf() fscanf() fopen()
int main(int argc,char**argv)
{
FILE * fout=NULL;//檔案指標變數
fout=fopen("a.txt","w+");//開啟檔案
printf("Hello World\n");
fprintf(fout,"Hello World\n");//改fprintf
1.2註解掉原先的程式碼
#include <stdio.h> ///外掛 printf(), fprintf(), fscanf(), fopen()
int main( int argc, char** argv )
{
/// FILE * fout=NULL;///step01 檔案指標 file output 變數
/// fout = fopen("檔名.txt", "w+");/// 開啟檔案
///
/// printf("Hello World\n");
/// fprintf(fout, "Hello World\n");
FILE * fin = NULL;///改成讀檔
fin = fopen("檔名.txt", "r"); ///讀檔
///scanf( "%d", &n ); //int
///scanf( "%c", &c ); //char
///scanf( "%f", &f ); //float
///scanf( "%s", line ); //
char line[100]; ///宣告字串 line
fscanf(fin, "%s", line); ///讀入字串
printf("現在讀到的是 %s \n", line );///step03 順便印出字串
fscanf(fin, "%s", line); /// 讀入字串
printf("現在讀到的是 %s \n", line );///印出字串
}
1.3跑出茶壺
程式碼：
#include <stdio.h>
#include <GLUT/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutSolidTeapot(0.3);
glutSwapBuffers();
}
int main(int argc, char** argv)
{
glutInit( &argc, argv );
glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );
glutCreateWindow("week15 many angles");
glutDisplayFunc(display);
glutMainLoop();
}
2.1複製茶壺
程式碼：
#include <stdio.h>
#include <GLUTglut.h>
float angle=0, diff=2;
void timer(int t)
{
glutTimerFunc(30, timer, t+1);///新的timer
angle += diff;
if(angle>90) diff = -2;
if(angle<0) diff = +2;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutSolidTeapot(0.3);
glutSwapBuffers();
}
int main(int argc, char** argv)
{
glutInit( &argc, argv );
glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );
glutCreateWindow("week15 many angles");
glutDisplayFunc(display);
glutMainLoop();
}
2.2 有一隻手臂的茶壺
程式碼：
#include <stdio.h>
#include <GLUT/glut.h>
float angle=0, diff=2;
void timer(int t)
{
glutTimerFunc( 30, timer, t+1 );
angle += diff;
if(angle>90) diff = -2;
if(angle<0) diff = +2;
glutPostRedisplay();
}
void display()
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glPushMatrix();
glutSolidTeapot( 0.3 );
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle, 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot( 0.3 );
glPushMatrix();
glTranslatef(-0.3, 0,0);
glRotatef(angle, 0,0,1);
glTranslatef(-0.3, 0,0);
glutSolidTeapot( 0.3 );
glPopMatrix();
glPopMatrix();
glPushMatrix();
glutSolidTeapot( 0.3 );
glutSolidTeapot( 0.3 );
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main( int argc, char** argv )
{
glutInit( &argc, argv );
glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );
glutCreateWindow( "week15 many angles" );
glutDisplayFunc( display );
glutTimerFunc( 0, timer, 0);
glutMainLoop();
}
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