*Step01:
CodeBlocks開新空白頁並存成cpp檔
輸入程式碼執行後會新增記事本檔案至與原檔案儲存在同目錄裡
#include <stdio.h>
int main()
{ //檔案指標 fout=fopen("檔名","模式"); 開檔案
FILE*fout=fopen("file.txt","w"); //w:write
printf("Hello World\n");
fprintf(fout,"Hello World在檔案裡\n");
}
*Step02:
CodeBlocks開新空白頁並存成cpp檔
輸入程式碼執行
*Step06:
輸入程式碼執行後會讀入記事本檔案
#include <stdio.h>
int main()
{
char line[20];
//scanf("%s",line);
FILE*fin=fopen("file.txt","r"); //r:read讀
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
}
*Step03:
#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]); //寫到檔案去
printf("%d ",a[i]); //順便印出來
}
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]); //讀到陣列b[i]裡
}
fclose(fin);
}
*Step04滑鼠控制茶壺移動:
CodeBlocks開新GLUT專案(記得先去lib複製libfreeglut.a修改檔名成libglut32.a)
#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); //設定顯示模式
glutCreateWindow("week12"); //視窗名稱
glutDisplayFunc(display); //顯示的函式
glutMouseFunc(mouse);
glutMainLoop(); //主要迴圈最後
}
*Step05滑鼠及空白鍵控制茶壺移動:
#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); //設定顯示模式
glutCreateWindow("week12"); //視窗名稱
glutDisplayFunc(display); //顯示的函式
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMainLoop(); //主要迴圈最後
}
*Step06:
把freeglut.dll檔案複製到新專案的資料夾
滑鼠移到方塊上按右鍵
將泛藍的位置改成 .
把freeglut.dll檔案複製到新專案的資料夾
滑鼠移到方塊上按右鍵
將泛藍的位置改成 . 
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