题解 | #最长公共前缀#

import java.util.*;


public class Solution {
    /**
     * 
     * @param strs string字符串一维数组 
     * @return string字符串
     */
    public String longestCommonPrefix (String[] strs) {
        // write code here strs.startsWith() substring
        if(strs.length==0)return "";
        String s=strs[0];
        for(int i=1;i<strs.length;i++){
            while(!strs[i].startsWith(s)){//if(!strs[i].startsWith(s)){
                s=s.substring(0,s.length()-1);//s=s.substring(0,strs.length()-1);
            }
        }
        return s;
    }
}