You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.2 KiB
42 lines
1.2 KiB
/**
|
|
* File: hash_map.dart
|
|
* Created Time: 2023-03-29
|
|
* Author: liuyuxin (gvenusleo@gmail.com)
|
|
*/
|
|
|
|
/* Driver Code */
|
|
void main() {
|
|
/* 初始化哈希表 */
|
|
final Map<int, String> map = {};
|
|
|
|
/* 添加操作 */
|
|
// 在哈希表中添加键值对 (key, value)
|
|
map[12836] = "小哈";
|
|
map[15937] = "小啰";
|
|
map[16750] = "小算";
|
|
map[13276] = "小法";
|
|
map[10583] = "小鸭";
|
|
print("\n添加完成后，哈希表为\nKey -> Value");
|
|
map.forEach((key, value) => print("$key -> $value"));
|
|
|
|
/* 查询操作 */
|
|
// 向哈希表中输入键 key ，得到值 value
|
|
final String? name = map[15937];
|
|
print("\n输入学号 15937 ，查询到姓名 $name");
|
|
|
|
/* 删除操作 */
|
|
// 在哈希表中删除键值对 (key, value)
|
|
map.remove(10583);
|
|
print("\n删除 10583 后，哈希表为\nKey -> Value");
|
|
map.forEach((key, value) => print("$key -> $value"));
|
|
|
|
/* 遍历哈希表 */
|
|
print("\n遍历键值对 Key->Value");
|
|
map.forEach((key, value) => print("$key -> $value"));
|
|
print("\n单独遍历键 Key");
|
|
map.keys.forEach((key) => print(key));
|
|
print("\n单独遍历值 Value");
|
|
map.forEach((key, value) => print("$value"));
|
|
map.values.forEach((value) => print(value));
|
|
}
|