class Solution {
public String longestCommonPrefix(String[] strs) {
int len=strs.length;
String minPre="";
//第一层是列,第二层是strs
for(int i=0;i
class Solution {
public String longestCommonPrefix(String[] strs) {
int len=strs.length;
String minPre="";
//第一层是列,第二层是strs
for(int i=0;i