為什么最后一行get不到ID
public void test3() {
System.out.println("請輸入待刪除的ID:");
Scanner input2=new Scanner(System.in);
String console=input2.nextLine();
Student sttt=students.get(ID);
public void test3() {
System.out.println("請輸入待刪除的ID:");
Scanner input2=new Scanner(System.in);
String console=input2.nextLine();
Student sttt=students.get(ID);
2018-10-11
舉報
2018-10-11
看錯了腦子有點糊涂哈哈哈哈哈哈