求C语言大神帮我看一下代码怎么修改成只能输入整数！！！！谢谢谢谢

Question

求C语言大神帮我看一下代码怎么修改成只能输入整数！！！！谢谢谢谢#include<stdio.h>
#include<stdlib.h>
#include<malloc.h>
typedef int DataType;
typedef struct node/*定义结点类型*/
{ DataType data;
struct node *next;
}ListNode;
typedef ListNode *LinkList;
LinkList CreateListR()
{
int it;
LinkList head;
ListNode *s, *r;
head = NULL;
r = NULL;
head = (ListNode *)malloc(sizeof(ListNode));
r = head;
while ((it = getchar()) != '\n')
{
s = (ListNode *)malloc(sizeof(ListNode));
s->data = it;
r->next = s;
r = s; }
if (r != NULL) r->next = NULL;
return head;
}
ListNode *LocateNode(LinkList head, DataType key)
{
ListNode *p = head->next;
while (p&&p->data != key) p = p->next;
if (p == NULL)
printf("Position error!\n");
else printf("已查找到\n");
return p;
}
void InsertList(ListNode *q, DataType x)
{
ListNode *p, *s;
DataType y;
if (q == NULL)
printf("Position error!");
else
{
s = (ListNode *)malloc(sizeof(ListNode));
s->data = x;
s->next = q->next;
q->next = s; }}
void print(LinkList h)
{
ListNode *p = h->next;
while (p != NULL)
{ printf("%3d", p->data);
p = p->next; }}
void main()
{
LinkList head = NULL;
ListNode *q;
int x, z;
head = CreateListR();
print(head);
printf("\n");
printf("请输入要插入的字符:");
scanf("%d", &x);
printf("请输入要插入字符的位置:");
scanf("%d", &z);
z = getchar();
q = LocateNode(head, z);
InsertList(q, x);
print(head);
printf("\n");}

Answer 1

好吧，你的while语句是错误的写法，这样写一般是for语句，while的语句要求是真就是1就执行，0就不执行，大于1可能他默认为真吧，最好改成for语句，
for（i=0；i<100；i++）{
。。。。}
注意C语言请把输入法切到英文

Answer 2

你这代码太长了
用int 就只能输入整数了

追问

对呀。就需要输入整数。但是输入整数会跳出asc码值