開啟檔案
- 至 CodeBlocks 開啟一個 Empty File
#include <stdio.h>
int main()
{
FILE * fout=fopen("檔名.txt", "w+");
printf( "Hello world\n");
fprintf(fout,"Hello world in file\n")
}
#include <stdio.h>
int main()
{
FILE * fout=fopen("
檔名2.txt", "w+");
for(int i=1;i<20;i++)
{
printf( "Hello %d\n",i);
fprintf(fout,"Hello %d\n",i);
}
}
#include <stdio.h>
int angel[10];///有很多個關節
int main()
{
FILE * fout=fopen("
motion.txt", "w+");
for(int i=1;i<10;i++)
{
printf( "%d \n",angel[i]);
fprintf(fout,"%d \n",angel[i]);
}
printf("\n");
fprintf(fout, "\n");
}
讀檔、動作
#include <GL/glut.h>
int angle[10]={0,0,0,0,0,0,0,0,0,0};
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///身體顏色
glutSolidTeapot(0.2);///身體
glPushMatrix();///右側開始
glTranslatef(0.2, 0,0 );
glRotatef(angle[0], 0,0,1);
glTranslatef(0.2, 0,0 );
glColor3f(0.5,0.4,0.3);///棕色
glutSolidTeapot(0.2);///右上手臂
glPushMatrix();
glTranslatef(0.2, 0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(0.2, 0,0);
glColor3f(0.3,0.6,0.7);///淺藍色
glutSolidTeapot(0.2);///右下手臂
glPopMatrix();
glPopMatrix();///右側結束
glPushMatrix();///左側開始
glTranslatef(-0.2, 0,0 );
glRotatef(angle[2], 0,0,1);
glTranslatef(-0.2, 0,0 );
glColor3f(0.8,1,0.6);///淺綠色
glutSolidTeapot(0.2);///左上手臂
glPushMatrix();
glTranslatef(-0.2, 0,0);
glRotatef(angle[3], 0,0,1);
glTranslatef(-0.2, 0,0);
glColor3f(0.4,0.1,0.6);///紫色
glutSolidTeapot(0.2);///左下手臂
glPopMatrix();
glPopMatrix();///左側結束
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week14");
glutDisplayFunc(display);
glutMainLoop();
}

#include <GL/glut.h>
int angle[10]={0,0,0,0,0,0,0,0,0,0};
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///身體顏色
glutSolidTeapot(0.2);///身體
glPushMatrix();///右側開始
glTranslatef(0.2, 0,0 );
glRotatef(angle[0], 0,0,1);
glTranslatef(0.2, 0,0 );
glColor3f(0.5,0.4,0.3);///棕色
glutSolidTeapot(0.2);///右上手臂
glPushMatrix();
glTranslatef(0.2, 0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(0.2, 0,0);
glColor3f(0.3,0.6,0.7);///淺藍色
glutSolidTeapot(0.2);///右下手臂
glPopMatrix();
glPopMatrix();///右側結束
glPushMatrix();///左側開始
glTranslatef(-0.2, 0,0 );
glRotatef(angle[2], 0,0,1);
glTranslatef(-0.2, 0,0 );
glColor3f(0.8,1,0.6);///淺綠色
glutSolidTeapot(0.2);///左上手臂
glPushMatrix();
glTranslatef(-0.2, 0,0);
glRotatef(angle[3], 0,0,1);
glTranslatef(-0.2, 0,0);
glColor3f(0.4,0.1,0.6);///紫色
glutSolidTeapot(0.2);///左下手臂
glPopMatrix();
glPopMatrix();///左側結束
glutSwapBuffers();
}
int angleID=0;///0,1,2,3
int oldX, oldY;
void mouse(int button, int state, int x, int y)
{
oldX=x; oldY=y;///備份(old)mouse位置
}
void motion(int x, int y)
{
angle[angleID] += (x-oldX);///滑動,更新 angleID對應的angle[]
oldX=x;
glutPostRedisplay();///重畫畫面
}
void keyboard(unsigned char key, int x, int y)
{///鍵盤,選angleID
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week14 file");
glutDisplayFunc(display);
glutMouseFunc(mouse);///備份(old)mouse位置
glutMotionFunc(motion);///滑動,更新 angleID對應的angle[]
glutKeyboardFunc(keyboard);///鍵盤,選angleID
glutMainLoop();
}

#include <GL/glut.h>
int angle[10]={0,0,0,0,0,0,0,0,0,0};
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///身體顏色
glutSolidTeapot(0.2);///身體
glPushMatrix();///右側開始
glTranslatef(0.2, 0,0 );
glRotatef(angle[0], 0,0,1);
glTranslatef(0.2, 0,0 );
glColor3f(0.5,0.4,0.3);///棕色
glutSolidTeapot(0.2);///右上手臂
glPushMatrix();
glTranslatef(0.2, 0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(0.2, 0,0);
glColor3f(0.3,0.6,0.7);///淺藍色
glutSolidTeapot(0.2);///右下手臂
glPopMatrix();
glPopMatrix();///右側結束
glPushMatrix();///左側開始
glTranslatef(-0.2, 0,0 );
glRotatef(angle[2], 0,0,1);
glTranslatef(-0.2, 0,0 );
glColor3f(0.8,1,0.6);///淺綠色
glutSolidTeapot(0.2);///左上手臂
glPushMatrix();
glTranslatef(-0.2, 0,0);
glRotatef(angle[3], 0,0,1);
glTranslatef(-0.2, 0,0);
glColor3f(0.4,0.1,0.6);///紫色
glutSolidTeapot(0.2);///左下手臂
glPopMatrix();
glPopMatrix();///左側結束
glutSwapBuffers();
}
int angleID=0;///0,1,2,3
int oldX, oldY;
void mouse(int button, int state, int x, int y)
{
oldX=x; oldY=y;///備份(old)mouse位置
}
#include <stdio.h> ///外掛
FILE * fout=NULL;
void saveAll()///(自己寫的函式)全部存檔
{
if(fout==NULL) fout=fopen("motion.txt", "w+");///TODO3:開檔
for(int i=0; i<10; i++){///for迴圈,把陣列全用
printf( "%d ", angle[i]);///印畫面
fprintf(fout, "%d ", angle[i]);///寫檔案
}
printf( "\n");///跳行, 畫面不會亂
fprintf(fout, "\n");///跳行, 畫面不會亂
}
void motion(int x, int y)
{
angle[angleID] += (x-oldX);///滑動,更新 angleID對應的angle[]
oldX=x;
saveAll();///(自己寫的函式)全部存檔
glutPostRedisplay();///重畫畫面
}
void keyboard(unsigned char key, int x, int y)
{///鍵盤,選angleID
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week14 file");
glutDisplayFunc(display);
glutMouseFunc(mouse);///備份(old)mouse位置
glutMotionFunc(motion);///滑動,更新 angleID對應的angle[]
glutKeyboardFunc(keyboard);///鍵盤,選angleID
glutMainLoop();
}

- 新增按鍵(1、2、3、4、r),讓每個關節有相對的按鍵
#include <GL/glut.h>
int angle[10]={0,0,0,0,0,0,0,0,0,0};
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///身體顏色
glutSolidTeapot(0.2);///身體
glPushMatrix();///右側開始
glTranslatef(0.2, 0,0 );
glRotatef(angle[0], 0,0,1);
glTranslatef(0.2, 0,0 );
glColor3f(0.5,0.4,0.3);///棕色
glutSolidTeapot(0.2);///右上手臂
glPushMatrix();
glTranslatef(0.2, 0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(0.2, 0,0);
glColor3f(0.3,0.6,0.7);///淺藍色
glutSolidTeapot(0.2);///右下手臂
glPopMatrix();
glPopMatrix();///右側結束
glPushMatrix();///左側開始
glTranslatef(-0.2, 0,0 );
glRotatef(angle[2], 0,0,1);
glTranslatef(-0.2, 0,0 );
glColor3f(0.8,1,0.6);///淺綠色
glutSolidTeapot(0.2);///左上手臂
glPushMatrix();
glTranslatef(-0.2, 0,0);
glRotatef(angle[3], 0,0,1);
glTranslatef(-0.2, 0,0);
glColor3f(0.4,0.1,0.6);///紫色
glutSolidTeapot(0.2);///左下手臂
glPopMatrix();
glPopMatrix();///左側結束
glutSwapBuffers();
}
int angleID=0;///0,1,2,3
int oldX, oldY;
void mouse(int button, int state, int x, int y)
{
oldX=x; oldY=y;///備份(old)mouse位置
}
#include <stdio.h> ///外掛
FILE * fout=NULL;
void saveAll()///(自己寫的函式)全部存檔
{
if(fout==NULL) fout=fopen("motion.txt", "w+");///TODO3:開檔
for(int i=0; i<10; i++){///for迴圈,把陣列全用
printf( "%d ", angle[i]);///印畫面
fprintf(fout, "%d ", angle[i]);///寫檔案
}
printf( "\n");///跳行, 畫面不會亂
fprintf(fout, "\n");///跳行, 畫面不會亂
}
void motion(int x, int y)
{
angle[angleID] += (x-oldX);///滑動,更新 angleID對應的angle[]
oldX=x;
saveAll();///(自己寫的函式)全部存檔
glutPostRedisplay();///重畫畫面
}
FILE * fin=NULL;///宣告檔案指標
void keyboard(unsigned char key, int x, int y)
{///鍵盤,選angleID
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
if(key=='r')
{
if(fin==NULL) fin=fopen("motion.txt", "r");///開檔
for(int i=0;i<10;i++)
{
fscanf(fin, "%d", &angle[i]);///讀檔
}
glutPostRedisplay();///重畫
}
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week14 file");
glutDisplayFunc(display);
glutMouseFunc(mouse);///備份(old)mouse位置
glutMotionFunc(motion);///滑動,更新 angleID對應的angle[]
glutKeyboardFunc(keyboard);///鍵盤,選angleID
glutMainLoop();
}

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