我正在尝试用 C 语言编写一个程序,该程序可以以数组结构(非并行)形式获取员工信息并将其输出到文本文件中。 该程序将比较职位代码并计算员工的佣金率。 我有两个问题:
1 - 即使我输入 TEL、SAL、SSR 之一,销售人员的佣金也始终为 0。是我的字符串比较有问题吗?
2 - 如何将结果输出到文本文件(在项目文件夹内)?
编辑 - 我已经弄清楚如何将我的文件打印到 txt 中。谢谢大家的帮助!
#include "stdafx.h"
#include <string.h>
#include <stdlib.h>
//job codes
char TEL[4] = "TEL";
char SAL[4] = "SAL";
char SSR[4] = "SSR";
//create a sales person structure
struct salesPerson
{
char name[31];
int salesID;
char jobCode[4];
double totalSales;
double commission;
}e[10]; //make an array of 10 employees
int _tmain(int argc, _TCHAR* argv[])
{
//get employee info
for(int i=0; i<3; i++)
{
printf("\nEnter the sales person's name: ");
scanf(" %s", &e[i].name);
printf("\nEnter the sales person's ID: \n");
scanf(" %d%*c", &e[i].salesID);
printf("\nEnter the sales person's job code: \n");
scanf(" %s", &e[i].jobCode);
printf("\nEnter the total sales of the sales person: ");
scanf(" %lf", &e[i].totalSales);
//determine commission based on jobCode
if(strcmp(e[i].jobCode, TEL) == 0)
{
e[i].commission = e[i].totalSales*0.02;
}
if(strcmp(e[i].jobCode, SAL) == 0)
{
e[i].commission = e[i].totalSales*0.05;
}
if(strcmp(e[i].jobCode, SSR) == 0)
{
e[i].commission = e[i].totalSales*0.07;
}
else
{
printf("\n----------");
}
}
printf("\n%d\n", e[0].commission);
printf("\n%d\n", e[1].commission);
printf("\n%d\n", e[2].commission);
//print stuff to txt file
FILE *fpOut, *fpIn;
/*
if ((fpIn = fopen("c:\\temp\\salesEmployees.txt", "w")) == NULL)
{
printf("Error opening the file for processing\n\n");
}
else
{
fpOut = fopen("c:\\temp\\salesEmployees.txt", "w");
for(int i=0; i<3; i++)
{
//fscanf(fpIn,"%[^\n]", &e[i].name);
//fscanf(fpIn,"%f%*c", &e[i].salesID);
fprintf(fpOut, "\nName: %s", e[i].name);
fprintf(fpOut, "\nSalesID: %d*c ", e[i].salesID);
fprintf(fpOut, "\nJob code: %s ", e[i].jobCode);
fprintf(fpOut, "\nTotal sales: %.2lf", e[i].totalSales);
fprintf(fpOut, "\nCommission earned: %.2lf", e[i].commission);
fprintf(fpOut, "\n\n");
}
//fclose(fpOut);
}*/
}
最佳答案
要回答问题的第二部分(关于程序崩溃和将文件保存在同一目录中):您打开同一个文件进行输入和输出,而无需在两者之间关闭;不知道为什么输入还在那里。假设(为简单起见)您只想将从键盘输入的内容保存到文件中,则可以删除对 fpIn
的所有引用。至于“将文件保留在同一文件夹中” - 只需使用相对路径。当您从 c:\my\dir
运行时,打开文件 salesOutput.txt
将导致其写入 c:\my\dir\salesOutput .txt
.
完整且可工作的代码(一些更改以适应我的编译器设置...):
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
//job codes
char TEL[4] = "TEL";
char SAL[4] = "SAL";
char SSR[4] = "SSR";
//create a sales person structure
struct salesPerson
{
char name[31];
int salesID;
char jobCode[4];
double totalSales;
double commission;
}e[10]; //make an array of 10 employees
int main(int argc, char* argv[])
{
//get employee info
int i;
for(i=0; i<3; i++)
{
printf("\nEnter the sales person's name: ");
scanf(" %s", &e[i].name);
printf("\nEnter the sales person's ID: \n");
scanf(" %d%*c", &e[i].salesID);
printf("\nEnter the sales person's job code: \n");
scanf(" %s", &e[i].jobCode);
printf("\nEnter the total sales of the sales person: ");
scanf(" %lf", &e[i].totalSales);
//determine commission based on jobCode
if(strcmp(e[i].jobCode, TEL) == 0)
{
e[i].commission = e[i].totalSales*0.02;
}
if(strcmp(e[i].jobCode, SAL) == 0)
{
e[i].commission = e[i].totalSales*0.05;
}
if(strcmp(e[i].jobCode, SSR) == 0)
{
e[i].commission = e[i].totalSales*0.07;
}
else
{
printf("\n----------");
}
}
printf("\n%lf\n", e[0].commission);
printf("\n%lf\n", e[1].commission);
printf("\n%lf\n", e[2].commission);
//print stuff to txt file
FILE *fpOut;
{
if((fpOut = fopen("salesEmployees.txt", "w")) == NULL)
{
printf("Unable to open file - quitting\n");
return -1;
};
int i;
for(i=0; i<3; i++)
{
fprintf(fpOut, "\nName: %s", e[i].name);
fprintf(fpOut, "\nSalesID: %d*c ", e[i].salesID);
fprintf(fpOut, "\nJob code: %s ", e[i].jobCode);
fprintf(fpOut, "\nTotal sales: %.2lf", e[i].totalSales);
fprintf(fpOut, "\nCommission earned: %.2lf", e[i].commission);
fprintf(fpOut, "\n\n");
}
fclose(fpOut);
}
}
显然,添加额外的 I/O、输入错误检查等是可取的(也是必要的)——但这应该会让你超越“它不起作用,我不知道为什么”的地步。我确实想知道为什么销售 ID 的打印输出中有 *c
- 它只是添加到输出中 - 但我决定不删除它。
祝编码顺利!
关于C 语言 - 将数组打印到文本文件中,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20085695/