Question

此代码用于在链接列表的开头添加员工配置文件。出于某些原因，我无法识别，这段代码只运行一次，然后它只打印了printf然后退出循环。即使在输入了大量记录之后，它仍然在做同样的事情。那么任何人都可以发现问题吗？

void insert_tobeg() {
    char name[15];
    struct employee *newPtr;
    printf("\n\n\tEnter the record to be entered:");
    gets(name);

    if(strcmp(start->name, name) == 0) {
        curr = (struct employee*)malloc(sizeof(struct employee));
        employee_entry();
        curr->newPtr = start;
        start = curr;
        printf("\n\n\tRecord has been added at the beggining!");
        return;
    }
}

Answer 1

你是说while while而不是if，并删除return语句。

Answer 2

您管理不正确，在第一个元素中覆盖名称，您需要写入当前分配的元素。试试这样的事情

curr = (struct employee*)malloc( sizeof(struct employee));
employee_entry();
if( strcmp( curr->name, name) == 0)
{
    curr->newPtr=start;
    start = curr;
    printf("\n\n\tRecord has been added at the beggining!");
    return;
}
else
{
    free(curr);
}

And don't cast malloc result in C

在配置文件中插入配置文件

2 个答案: