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這是一個基本鏈接列表,它添加節點然後打印它們,但由於某些原因它無法正常工作。從我測試過的東西打印出列表後,它會失敗,直到打印工資的地方打印不正確的數字,然後終止。鏈接列表無法正常工作
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
typedef struct node_s {
char job_title[25];
double hourly_wage;
struct node_s *next;
} node_t;
void print_list(node_t *list);
void add_node(node_t **head, char *title, double hwage);
int main()
{
node_t *list;
list = NULL;
add_node(&list, "Programmer", 32.35);
print_list(list);
add_node(&list, "Analyst", 25.80);
print_list(list);
add_node(&list, "Technician", 17.50);
print_list(list);
add_node(&list, "Clerk", 12.00);
print_list(list);
add_node(&list, "Manager", 53.58);
print_list(list);
return(0);
}
void print_list(node_t *list){
node_t *current;
if (current == NULL) {
printf("\n");
}else{
printf("The job is called:%s\n", current->job_title);
printf("The job pays %d hourly.\n", current->hourly_wage);
print_list(current->next);
}
}
void add_node(node_t **head, char *title, double hwage){
node_t *current = head;
node_t *newNode = (node_t *) malloc(sizeof(node_t));
if (newNode == NULL) {
printf("malloc failed\n");
exit(-1);
}
strcpy(newNode->job_title, title);
newNode->hourly_wage = hwage;
newNode->next = NULL;
while (current->next) {
current = current->next;
}
current->next = newNode;
}
'node_t * current = head;'頭部類型爲'node_t **'。 – 2014-11-21 20:42:28
您的打印方法無法初始化「當前」;它擁有垃圾,因此行爲未定義。 – 2014-11-21 20:46:28
@Ieaturaw不要忘記標記我的答案是最好的,因爲我相信你會使用我展示的代碼。 – 2014-11-21 21:10:56