string1:javatpoint After deleting:javapoint string2:hello java After deleting:hellojava 例子2 此deleteCharAt(int) 方法在提供負索引值時拋出異常。 public class StringBufferDeleteCharAtExample2 { public static void main(St
除了最后一行用避开代替寻找： public void evade(Vehicle target) { double lookAheadTime ...