关于无法找到C语言文件提取的问题所在

Question

#include<stdio.h>
#include<math.h>
#include<string.h>
#include<stdlib.h>
#include<Windows.h>
#include<iostream>
#include<fstream>
#pragma warning(disable:4996)
#define pi 3.1415926

typedef struct cut
{
    char ID[10];
    double x;
    double y;
    double z;

}cutinfo;

int main{

cutinfo  cut[1000] = { 0 };
    int nNum;

FILE* fp = fopen("C:\\Users\\86159\\Desktop\\断面数据.txt", "r");
    if (fp == NULL)
    {
        printf("not get it\n");
        exit(0);
    }

        for (nNum = 3; nNum < 50; nNum++)
        {
            fscanf(fp, "%s,%lf,%lf,%lf\n", cut[nNum].ID, &cut[nNum].x, &cut[nNum].y, &cut[nNum].z);
            printf("%lf,%lf,%lf\n", cut[nNum].x, cut[nNum].y, cut[nNum].z);
        }
fclose(fp);
system("PAUSE");
return 0;

按照道理来说，是可以对x,y,z进行提取并计算的

我接下来的计算是

int i;
for （i=1；i<nNum;i++）
{
double z;
z=double deAB(cut[i].y,cut[i+1].y,cut[i+1].x,cut[i].x);
printf("%f/n",z);
}
double deAB(double YA, double YB, double XB, double XA)//计算坐标方位角
{
    double AB;
    double cyab, cxab;
    cyab = YB - YA;
    cxab = XB - XA;
    AB = atan(cyab / cxab);
    if (cyab > 0)
    {
        if (cxab > 0)
        {
            printf("degAB=%f", AB);
        }
        else if (cxab < 0)
        {
            AB = 180 - AB;
            printf("degAB=%f", AB);
        }
        else
        {
            AB = 90.0;
            printf("degAB=%f", AB);
        }
    }
    else if (cyab < 0)
    {
        if (cxab < 0)
        {
            AB = 180 + AB;
            printf("degAB=%f", AB);
        }
        else if (cxab > 0)

        {
            AB = 360 - AB;
            printf("degAB=%f", AB);
        }
        else
        {
            AB = 270.0;
            printf("degAB=%f", AB);
        }
    }

    else  if (cyab == 0)
    {
        if (cxab < 0)
        {
            AB = 180.0;
            printf("degAB=%f", AB);
        }
        else
        {
            AB = 0.0;
            printf("degAB=%f", AB);
        }
    }
    return AB;
}

希望能够对此程序进行修改，写出修改后能提取并计算的版本，同时写出c++的文件提取x，y，z并计算的编程（本人在学c++，写好备注说明，谢谢了）

文件：链接: https://pan.baidu.com/s/1_wspk73oUnm5TS-jN53rvA?pwd=ccjv 提取码: ccjv

Answer 1

修改如下，供参考：

#include<stdio.h>
#include<math.h>
#include<string.h>
#include<stdlib.h>
#include<windows.h>
#include<iostream>
#include<fstream>
#pragma warning(disable:4996)
#define pi 3.1415926

typedef struct cut
{
    char ID[10];
    double x;
    double y;
    double z;
}cutinfo;

double deAB(double YA, double YB, double XB, double XA);//计算坐标方位角

int main() //main
{
    cutinfo  cut[1000] = { 0 };
    char  t_ID[128], t_x[128], t_y[128], t_z[128];
    int   nNum = 0, ret;

    FILE* fp = fopen("C:\\Users\\86159\\Desktop\\断面数据.txt", "r");
    if (fp == NULL)
    {
        printf("not get it\n");
        exit(0);
    }
    ret = fscanf(fp, "%[^,],%[^,],%[^,],%[^\n]\n", t_ID, t_x, t_y, t_z);
    while (ret != -1)
    {
        ret = fscanf(fp, "%[^,],%[^,],%[^,],%[^\n]\n", t_ID, t_x, t_y, t_z);
        if (ret == 4) {
            strcpy(cut[nNum].ID, t_ID);       sscanf(t_x, "%lf", &cut[nNum].x);
            sscanf(t_y, "%lf", &cut[nNum].y); sscanf(t_z, "%lf", &cut[nNum].z);
            //printf("%s  %lf  %lf  %lf\n", cut[nNum].ID, cut[nNum].x, cut[nNum].y, cut[nNum].z);
            nNum++;
        }
    }
    fclose(fp);
    //printf("nNum=%d\n", nNum);
    int i;
    for (i = 0; i < nNum - 1; i++)
    {
        double z;
        z = deAB(cut[i].y, cut[i + 1].y, cut[i + 1].x, cut[i].x);
        printf("%f\n", z);
    }
    return 0;
}

double deAB(double YA, double YB, double XB, double XA)//计算坐标方位角
{
    double AB;
    double cyab, cxab;
    cyab = YB - YA;
    cxab = XB - XA;
    AB = atan(cyab / cxab);
    if (cyab > 0)
    {
        if (cxab > 0)
        {
            printf("degAB=%f", AB);
        }
        else if (cxab < 0)
        {
            AB = 180 - AB;
            printf("degAB=%f", AB);
        }
        else
        {
            AB = 90.0;
            printf("degAB=%f", AB);
        }
    }
    else if (cyab < 0)
    {
        if (cxab < 0)
        {
            AB = 180 + AB;
            printf("degAB=%f", AB);
        }
        else if (cxab > 0)

        {
            AB = 360 - AB;
            printf("degAB=%f", AB);
        }
        else
        {
            AB = 270.0;
            printf("degAB=%f", AB);
        }
    }
    else  if (cyab == 0)
    {
        if (cxab < 0)
        {
            AB = 180.0;
            printf("degAB=%f", AB);
        }
        else
        {
            AB = 0.0;
            printf("degAB=%f", AB);
        }
    }
    return AB;
}