Week13_鄭昕恬

複習寫檔&讀檔


1.新增一個.cpp檔

2.fopen("檔名","(寫 write)w+")


程式碼:

#include <stdio.h>

int main()

{

    //開檔

    FILE *fout = fopen("output.txt","w+");

    fprintf(fout,"Hello world\n");

    //寫檔

}

*桌面上會出現一個output.txt檔，裡面會有剛剛寫入的文字

自動寫檔程式碼:

#include <GL/glut.h>

#include <stdio.h>

FILE * fout=NULL;

float angle=60, angle2=90, angle3=60;

void keyboard(unsigned char key, int x, int y)

{

    if(key=='s' || key=='S' || key=='w' || key=='W'){

        if(fout==NULL) fout=fopen("output.txt", "w+"); 

        printf("%.3f %.3f %.3f\n", angle,angle2,angle3);

        fprintf(fout, "%.3f %.3f %.3f\n", angle,angle2,angle3);

    }

}

const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };

const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f };

const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };

const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };

const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat high_shininess[] = { 100.0f };

/* Program entry point */

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

   /* glPushMatrix();

        glutSolidTeapot(0.3);

        glPushMatrix();

            glTranslatef(0.4, 0, 0);

            glRotatef(angle, 0,0,1);

            glTranslatef(0.4, 0, 0);

            glutSolidTeapot(0.3); 

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

/*void motion(int x, int y)

{

    angle = x;

    glutPostRedisplay();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitWindowSize(640,480);

    glutInitWindowPosition(10,10);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    

    ///glutReshapeFunc(resize);

    glutDisplayFunc(display);

//    glutMotionFunc(motion);

    glutKeyboardFunc(keyboard);

    ///glutKeyboardFunc(key);

    ///glutIdleFunc(idle);

    glClearColor(1,1,1,1);

    ///glEnable(GL_CULL_FACE);

    ///glCullFace(GL_BACK);

    glEnable(GL_DEPTH_TEST);

    glDepthFunc(GL_LESS);

    glEnable(GL_LIGHT0);

    glEnable(GL_NORMALIZE);

    glEnable(GL_COLOR_MATERIAL);

    glEnable(GL_LIGHTING);

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);

    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);

    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);

    glLightfv(GL_LIGHT0, GL_POSITION, light_position);

    glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);

    glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);

    glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);

    glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

    glutMainLoop();

    return EXIT_SUCCESS;

}