91 week12

 week12-1:

開一個空白檔案取名.cpp

要開檔案指標 fopen()

程式碼:

#include <stdio.h>

int main()

{

    FILE*fout=fopen("file.txt","w");

    printf("Hello World\n");

    fprintf(fout,"Hello World在檔案裡\n");

}

week12-2:

開一個新檔名week12-2.cpp

程式碼:

#include <stdio.h>

int main()

{

    char line[20];

    FILE*fin=fopen("file.txt","r");///r:read

    fscanf(fin,"%s",line);

    printf("讀到了:%s\n",line);///馬上印

    fscanf(fin,"%s",line);

    printf("讀到了:%s\n",line);///馬上印

}

week12-3:

程式碼:

#include <stdio.h>

int main()

{

    int a[10]={10,20,30,40,50,60,70,80,90,100};

    FILE*fout=fopen("file3.txt","w");

    for(int i=0;i<10;i++){

        fprintf(fout,"%d ",a[i]);

        printf("%d ",a[i]);

    }

    fclose(fout);

    int b[10];

    FILE*fin=fopen("file3.txt","r");

    for(int i=0;i<10;i++){

        fscanf(fin,"%d",&b[i]);///

        printf("%d ",b[i]);

    }

    fclose(fin);

}

week12-4:

開一個glut專案

程式碼:

#include <stdio.h>

#include <GL/glut.h>

float teapotX=0,teapotY=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glTranslatef(teapotX,teapotY,0);

        glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void mouse(int button,int state,int x,int y)

{

    teapotX=(x-150)/150.0;

    teapotY=(150-y)/150.0;

    display();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week12");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}

修改程式碼:

#include <stdio.h>

#include <GL/glut.h>

float teapotX=0,teapotY=0;

FILE*fout=NULL;

FILE*fin=NULL;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glTranslatef(teapotX,teapotY,0);

        glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void mouse(int button,int state,int x,int y)

{

    teapotX=(x-150)/150.0;

    teapotY=(150-y)/150.0;

    if(state==GLUT_DOWN){

        if(fout==NULL) fout=fopen("file4.txt","w");

        fprintf(fout,"%f %f\n",teapotX,teapotY);

    }

    display();

}

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

{

    if(fin==NULL){

        fclose(fout);

        fin=fopen("file4.txt","r");

    }

    fscanf(fin,"%f%f",&teapotX,&teapotY);

    display();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week12");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMainLoop();

}

codeblocks week12-4選擇save everything，查看week12-4的資料夾，找到week12-4.cbp，

notepad++開啟，查看working-->properties-->-->build target-->-->execution working dir的空格

改成小數點，最後工作目錄會變成在week12-4的專案裡。

期末作品:

codeblocks關掉，copy整個week12-4目錄，名稱改成Final_Project，專案從week12-4.cbp改成Final_Project.cbp。codeblocks打開project，查看working-->properties-->-->build target-->-->execution working dir的空格

改成小數點。

project-->working-->properties-->title改成Final_Project。

git指令上傳。