怎么用c语言编写一个旋转的动画

要使用C语言编写一个旋转的动画，可以使用图形库如OpenGL或者SDL来实现。以下是使用OpenGL库编写一个旋转的动画的示例代码：

#include <GL/glut.h> float angle = 0.0f; // 角度 void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // 设置视角 glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(0, 0, 5, 0, 0, 0, 0, 1, 0); // 设置旋转 glRotatef(angle, 0.0f, 1.0f, 0.0f); // 绘制一个立方体 glBegin(GL_QUADS); // 绘制前面 glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, 0.5f); glVertex3f(0.5f, -0.5f, 0.5f); glVertex3f(0.5f, 0.5f, 0.5f); glVertex3f(-0.5f, 0.5f, 0.5f); // 绘制后面 glColor3f(0.0f, 1.0f, 0.0f); glVertex3f(-0.5f, -0.5f, -0.5f); glVertex3f(-0.5f, 0.5f, -0.5f); glVertex3f(0.5f, 0.5f, -0.5f); glVertex3f(0.5f, -0.5f, -0.5f); // 绘制左面 glColor3f(0.0f, 0.0f, 1.0f); glVertex3f(-0.5f, -0.5f, 0.5f); glVertex3f(-0.5f, 0.5f, 0.5f); glVertex3f(-0.5f, 0.5f, -0.5f); glVertex3f(-0.5f, -0.5f, -0.5f); // 绘制右面 glColor3f(1.0f, 1.0f, 0.0f); glVertex3f(0.5f, -0.5f, -0.5f); glVertex3f(0.5f, 0.5f, -0.5f); glVertex3f(0.5f, 0.5f, 0.5f); glVertex3f(0.5f, -0.5f, 0.5f); // 绘制上面 glColor3f(0.0f, 1.0f, 1.0f); glVertex3f(-0.5f, 0.5f, 0.5f); glVertex3f(0.5f, 0.5f, 0.5f); glVertex3f(0.5f, 0.5f, -0.5f); glVertex3f(-0.5f, 0.5f, -0.5f); // 绘制下面 glColor3f(1.0f, 0.0f, 1.0f); glVertex3f(-0.5f, -0.5f, 0.5f); glVertex3f(-0.5f, -0.5f, -0.5f); glVertex3f(0.5f, -0.5f, -0.5f); glVertex3f(0.5f, -0.5f, 0.5f); glEnd(); glutSwapBuffers(); } void update(int value) { angle += 1.0f; // 每次更新角度增加1度 if (angle > 360) { angle -= 360; } glutPostRedisplay(); glutTimerFunc(25, update, 0); } int main(int argc, char** argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH); glutInitWindowSize(500, 500); glutCreateWindow("Rotation