啊啊啊，真的没啥东西好写啊【leetcode】290. Word Pattern

public class Solution {
    public boolean wordPattern(String pattern, String str) {
        String[] s=str.split(" ");
        if(pattern.length()!=s.length) return false;
        for(int i=0;i<pattern.length();i++) {
            for(int j=0;j<i;j++) {
                if((pattern.charAt(i)!=pattern.charAt(j)&&s[i].equals(s[j]))|(pattern.charAt(i)==pattern.charAt(j)&&!s[i].equals(s[j]))) return false;
            }
        }
        return true;
    }
}