这是代码:
#include <stdlib.h>
#include <stdio.h>
#include "descartes.h"
/*
* Eulidean travelling salesman
*/
#define MAXCITIES 100
#define FALSE 0
#define TRUE 1
point_t city [MAXCITIES];
int numCities = 0;
int ReadCities(void);
double TourLength(lineSeg_t cityLines[]);
void DrawTour(void);
int main(void) {
printf ("main1\n");
OpenGraphics();
printf ("main2\n");
ReadCities();
DrawTour();
double TourLength(lineSeg_t cityLines[]);
CloseGraphics();
return EXIT_SUCCESS;
}
int ReadCities(void) {
printf ("ReadCities1");
int i = 1;
printf ("ReadCities2");
city[0] = GetPoint();
while ((XCoord(city[i])) >= 0) {
city[i] = GetPoint();
printf ("(%d, %d)", XCoord(city[i]), YCoord(city[i]));
numCities++;
i++;
}
if (numCities <= MAXCITIES) {
return TRUE;
}
else {
return FALSE;
}
}
double TourLength(lineSeg_t cityLines[]) {
double totLen = 0;
int i;
for (i = 0; i < (numCities - 1); i++) {
totLen += Length(cityLines[i]);
}
return totLen;
}
void DrawTour(void) {
lineSeg_t cityLines[MAXCITIES];
int i;
for (i = 0; i < (numCities - 1); i++) {
cityLines[i] = LineSeg(city[i], city[i + 1]);
DrawLineSeg(cityLines[i]);
}
}
当我运行该程序时,它会打印出来:
main1
main2
然后程序挂起。我至少期望它可以打电话给ReadCities()
并打印到
ReadCities1
ReadCities2
但无论我尝试什么,只需在打印main2
后挂在终端上闪烁的光标。代码中可能还有其他错误,但我甚至无法测试它!
对不起,如果它显而易见,我是编程新手! 干杯!
答案 0 :(得分:0)
不确定这一行是什么:
while ((XCoord(city[i])) >= 0)
回来了,似乎这个循环可能没有破坏。在这样的情况下,我在我的循环中printf()XCoord(city [i])的值,看看那里有什么值...
使用printf()&#39; s对于这样的事情非常有用。
另外,正如有人说主要的那样是一个函数原型声明:
double TourLength(lineSeg_t cityLines []);