想用C语言编写一个程序，能够向txt文档写入一段内容，并且这个内容中有2个变量。但现在有一执行就会卡住，不知道为何？？

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

void writetxt(double d, double e);

int main(void)
{
 double d = 2.06;
 double e = 4.0;
 int ee;
 int dd;

 for(d;d <= 2.26; d += 0.02)
 {
 for(e;e <= 14.0;d++)
 {
     ee = (int)e;
     dd = (int)d;
     writetxt(d,e,dd,ee);
 }
 }

return 0;
}

void writetxt(double d, double e,int dd,int ee)
{
            FILE *fp=fopen("d:\\lq.txt","w");  
            fprintf(fp,"#medium: %.1f 0.0 0.0 0.005 1.0 0.0 concrete\n",e);
            fprintf(fp,"---------------------------------------------------------------------\n");
            fprintf(fp,"#domain: 4.0 4.0\n");
            fprintf(fp,"#dx_dy: 0.01 0.01\n");
            fprintf(fp,"#time_window: 30e-9\n");
            fprintf(fp,"---------------------------------------------------------------------\n");
            fprintf(fp,"#box: 1.0 2.0 3.0 %.2f concrete\n",d);
            fprintf(fp,"---------------------------------------------------------------------\n");
            fprintf(fp,"#line_source: 1.0 400e6 gaussian MyLineSource\n");
            fprintf(fp,"---------------------------------------------------------------------\n");
            fprintf(fp,"#analysis: 1 e%d_%dcm.out b\n",ee,dd);
            fprintf(fp,"#tx: 2 1.0 MyLineSource 0.0 30e-9\n");
            fprintf(fp,"#rx: 2 1.0\n");
            fprintf(fp,"#rx_steps: 0.1 0.0\n");
            fprintf(fp,"#tx_steps: 0.1 0.0\n");
            fprintf(fp,"#end_analysis:\n");
            fprintf(fp,"---------------------------------------------------------------------\n");
            fprintf(fp,"#geometry_file:  e%d_%dcm.geo\n",ee,dd);
            fprintf(fp,"#messages: y\n");
            fclose(fp);


}

谢谢指教