为什么最后一行get不到ID
public void test3() {
System.out.println("请输入待删除的ID：");
Scanner input2=new Scanner(System.in);
String console=input2.nextLine();
Student sttt=students.get(ID);
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public void test3() {
System.out.println("请输入待删除的ID：");
Scanner input2=new Scanner(System.in);
String console=input2.nextLine();
Student sttt=students.get(ID);
2018-10-11
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