Question

嗯我正在尝试完成一些编码.....我不确定我的程序究竟出了什么问题错误似乎在输出区域，因为我认为它给了我变量的内存位置但是我初始化为0，我不知道现在可能出现什么问题......困惑的脸。这是程序（只是错误区域，非完整程序）。

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

typedef struct Mica
{
    char FleNme [256];
}Mscl;

typedef struct Blade
{
    char BladeName [80];
}blade;

typedef struct eader
{
    char Header[256];
}header;

int main()
{
    Mscl Access;
    blade info;
    int hcount =0;
    int x=0;
    char decision;
    float BladePrice = 0;
    int spin = 0;
    int speed= 0;
    int weight= 0;
    header inf[hcount];
    FILE *Nmes;

    system("cls");

    printf("Please enter the name of the file you wish to Add:\n ");
    scanf("%s",&Access.FleNme);

    if((Nmes=fopen(Access.FleNme,"r"))==NULL)
    {
        printf("File can be created\n");
        Nmes=fopen(Access.FleNme,"w");
    }
    else
    {
        printf("File exist Already redirecting to Menu y for yes n for no: ");
        scanf("%s",&decision);

        if(decision=='y')
        {
            main();
        }
        else
        {
            exit(0);
        }
    }

    printf("Format Example: Bladename  BladePrice  Spin  Control  Weight\n");
    printf("Please Input how many headers you will be using: ");
    scanf("%d",&hcount);

    for (x=0;x<hcount;x++)
    {
        printf("Please enter The Header Name: ");
        scanf("%s",&inf[x].Header);
    }

    system("cls");
    printf("Please enter Name of Item: ");
    scanf("%s",&info.BladeName);
    printf("\nPlease enter Price of Item: ");
    scanf("%f",&BladePrice);
    printf("\nPlease enter Speed of Item: ");
    scanf("%d",&speed);
    printf("\nPlease enter Spin of Item: ");
    scanf("%d",&spin);
    printf("\nPlease enter weight of Item: ");
    scanf("%d",&weight);

    for(x=0;x<hcount;x++)
    {
        printf("%s\t",inf[x].Header);
    }

    printf("\n%s\t%.2f\t%d\t%d\t%d",&info.BladeName,&BladePrice,&speed,&spin,&weight);
}

Answer 1

一个错误是

char decision;
...
scanf("%s",&decision);

您要求scanf将char数组写入单个char。这将有未定义的结果，但可能会导致覆盖decision后的堆栈变量。

要解决此问题，请使用%c作为格式说明符

scanf("%c",&decision);

或将decision声明为char数组

char decision[32];
scanf("%.31s",decision);

如果您仍然看到更多问题，请更详细地说明您的计划在何处发生。如果您花时间格式化代码并修复其缩进，这也将是一个很大的帮助。

UGH ....我瞎了吗？似乎无法找到错误C编程

1 个答案: