java数组的拷贝四种方法：for、clone、System.arraycopy、arrays.copyof

public class ArrayCopy{
    public static void main(String []args){
	int []a = {1,3,4,5};

	toPrint(a);
	int []aFor=new int[a.length];
	//1.for循环复制
	System.out.println("===========1.使用for复制");
	for(int i=0;i