带#include<stdio.h>的程序不能运行！

zuowu0423

求教大虾：
    用来定义动网格运动方式的程序中，不含#include<stdio.h>的可以运行，但是包含了这个头文件的就无法运行了，请各位大虾指点一下迷津，谢谢！

zuowu0423

具体代码如下：
#include "stdio.h"
#include "udf.h"
/*#define PI=3.1415926*/
#define A=0.02
#define omegal 2*3.1415926*2.0
/****************************************
compiled UDF for 2-degree of freedem equation of motion
****************************************/
/*static real o_prev=0.0;*/
DEFINE_CG_MOTION(valve, dt, vel, omega, time, dtime)
{
thread *t;
face_t f;
real dv_y;
/*reset velocities*/
NV_S(vel,=,0.0);
NV_S(omega,=,0.0);
if(!Data_valid_P())
  return;
/*get the thread pointer for which this motion is defined*/
t=DT_THREAD(dt);
/*compute change in velocity*/
v_y_prev=omegal*A*cos(omegal*time);
/*message("time=%f,omega=%f\n",time,o_prev);*/
/*set y-component of velocity*/
vel[1]=v_y_prev;
}

alicefhy

应该不能要#include "stdio.h"，以下是帮助里的一段话
2.15 File Inclusion Directive Using #include
The UDF interpreter also supports C preprocessor directives for file inclusions. When you
use the #include file inclusion directive, the C preprocessor replaces the line #include
filename with the contents of the named file.
#include "filename"
The file you name must reside in your current directory. The only exception to this rule
is the udf.h file, which is read automatically by the FLUENT solver.
For example, the le inclusion directive given by
#include "udf.h"
will cause the udf.h file to be included with your source code.