Question

我正在尝试编写一个程序，以编辑包含代码块上用户费用的文本文件。

第一阶段：：文件名为“ abc.txt”。它说明了当前金额和每个日期的支出。通过循环，我将“ abc.txt”复制到另一个文件“ test.txt”。

第二阶段：，在另一个循环中，我要求用户添加一个新的日期和新金额，该金额将被减去或添加到总金额中。

第三阶段：我关闭两个文件，并使用另一个循环将“ test.txt”文件（包含所有更新的信息）复制到原始abc.txt”文件。

问题出在最后阶段；复制文本时，不保留空格。

如果要使用我的代码，则应该有2个文本文件，分别为“ abc.txt”和“ test.txt”。将“测试”文件保留为空白，然后在“ abc”文件中输入以下内容：

[0]       Total amount:    79179      [1]
[1]
[1]
[1]
[0] Date:   1.1.19  [1]
[0] Sub:    10000   70000   [1]
[1]
[0] Date:   2.1.19  [1]
[0] Add:    10000   80000   [1]
[1]
[0] Date:   3.1.19  [1]
[0] Sub:    499 79501   [1]
[1]
[0] Date:   4.1.19  [1]
[0] Sub:    322 79179   [1]
[1]

然后运行以下代码：

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

int main()
{
    FILE * filepointer;
    filepointer=fopen("abc.txt","r");

    char name[100];
    char name1[1000];
    int num;
    int old_amount;
    char date[20];
    int flag=0;
    int amount;
    char action[10];
    int tit;

    FILE *test;
    test=fopen("test.txt","w");

    fscanf(filepointer,"%s %s %s %d", &name, &name, &name, &amount );
    printf("The total amount:   %d\n",amount);

    while(!feof(filepointer))
    {
        fscanf(filepointer,"%s",name );

        if(strcmp(name,"[1]")==0)
        {
            printf("\n");
            fprintf(test,"[1]\n");
            fscanf(filepointer,"%s  ",name );
        }
            printf("%s  ",name);
            fprintf(test,name);
            fprintf(test,"   ");
    }

    printf("Enter date: ");
    scanf("%s",&date);

    printf("date: %s\n ",date);
    fprintf(test,"\n[0]   Date:   ");
    fprintf(test,date);
    fprintf(test,"     [1]\n");

    while(flag==0)
        {
            fflush(stdin);
            printf("What is th amount: ");
            scanf("%d",&num);


            printf("[0] %d\nstate action [S] [A]: ",num);
            scanf("%s",&action);


            if(strcmp(action,"a")==0 || strcmp(action,"A")==0)
            {
                fprintf(test,"\n[0]    Add:     %d      ",num);

                amount=amount+num;
                fprintf(test,"%d    [1]\n",amount);
                printf("OK");
            }

            if(strcmp(action,"s")==0 || strcmp(action,"S")==0)
            {
                fprintf(test,"\n[0]    Sub:     %d      ",num);

                amount=amount-num;
                fprintf(test,"%d    [1]\n",amount);
                printf("OK");
            }


            printf("\nDo you wish to add another value?[Y] [N]\n");
            scanf("%s",&action);

            if(strcmp(action,"n")==0 || strcmp(action,"N")==0)
            {
                flag=1;
            }
        }
    fclose(test);
    fclose(filepointer);

    FILE * text;
    text=fopen("test.txt","r");


    FILE *abc;
    abc=fopen("abc.txt","w");

    fprintf(abc,"\n[0]       Total amount:    %d      [1]\n",amount);


    while(!feof(text))
    {
        fscanf(text,"%s",&name1 );

        if(strcmp(name1,"[1]")==0)
        {
            //printf("       GOT IT   \n");
            fprintf(abc,"[1]\n");
            fscanf(text,"%s  ",&name1 );
        }
            printf("%s  ",name1);
            fprintf(abc,"%s ",name1);
            fprintf(abc,"   ");
    }


    return 0;
}

当我在项目文件中运行它时，它可以正常工作，但是当我作为应用程序运行时，它会带来麻烦……有什么想法吗？

fscanf命令无法识别空格

0 个答案: