package com.limuzi01;

import java.util.Scanner;
public class 查找 {
public static void main(String[] args){
int[] arr={10,20,30,40,50,60,70,80};
Scanner sr = new Scanner(System.in);
System.out.println("请输入要查找的数：");
int number = sr.nextInt();
int Index = GetIndex(arr,number);
System.out.println("Index:"+Index);
}
public static int GetIndex(int[] arr,int number){
int Index = -1;
for(int x=0;x<arr.length;x++){
if(number==arr[x]){
Index=x;
break;
}
}
return Index;
}
}