模拟发射物体抛物线轨迹的 C 代码提前终止

Question

该程序模拟以固定的垂直和水平速度以一定角度发射的物体的抛物线轨迹。它以终端控制台中显示的坐标输出数据。

但是，程序只输出到第二行就终止了，所以一定是代码某处出错了。我无法识别错误，所以我请求帮助!

 #include <stdio.h>
 #include <stdlib.h>

 int main(void) {
 float lvelox;
 float lveloy;
 float xcord;
 float ycord;
 int stepcount;
 int step = 0;

 /* Initializing velocity */
 {
   printf("Enter the initial h velocity of the ball:\n");
   scanf("%f", &lvelox);
   printf("Enter the initial v velocity of the ball:\n");
   scanf("%f", &lveloy);
 }

 /* Obtain number of steps */
 {
   printf("Enter the number of steps wanted:\n");
   scanf("%d", &stepcount);
 }

 /* formula for calculating initial position */
   if ( step == 0 )
   {
   xcord = 0;
   ycord = 0;
   step = step + 1;
   printf("\n");
   printf("xcord, ycord, step\n");
   printf("\n");
   printf("%f, ", xcord);
   printf("%f, ", ycord);
   printf("%d\n", step);
   }

 /* Loop method */
   if ( step < stepcount )
   {
   lveloy = lveloy - 9.81;
   xcord = xcord + lvelox;
   ycord = ycord + lveloy;
   step = step + 1;
   printf("%f, ", xcord);
   printf("%f, ", ycord);
   printf("%d\n", step);

   if ( ycord < 0 )
   {
   lveloy = (lveloy * -1);
   lveloy = lveloy - 9.81;
   xcord = xcord + lvelox;
   ycord = ycord + lveloy;
   step = step + 1;
   printf("%f, ", xcord);
   printf("%f, ", ycord);
   printf("%d\n", step);
   }
   }

   if (step >= stepcount)
   {
       return 0;
   }

 }

Answer 1

我想你想要一个循环而不是 if，在你的代码中:

 if ( step < stepcount ) 

应该是:

 while ( step < stepcount )