谁帮我改改这段代码，谢谢

Question

function  MyDecode(s);  
function  MyDecode(str)  {...}这样的方法定义是错误的。
把function  MyDecode(s);改成：MyDecode(s);   
把function  MyDecode(str){...}挪到类体外面，改成：void MyDecode(String str){...}方法内部不能用var，而应该写明变量类型，如int、String等。String类的子串方法是substring不是substr。取得char数组的方法是toCharArray。......问题多多，可能需要从基础看起。找本入门书或者语法书看看。

Answer 1

很多错误啊
建议：买本JAVA的教材，看一下吧
如果学过其他语言，学JAVA不难的

Answer 2

今天闲着没事，改了一下楼主的程序，仔细看了一下功能，是要实现加密的吗？：
import  java.awt.*;  
public  class  Demo  
{  
           public  static  void  main(String[]  a)  
           {  
                       String  s;  
                       s="rongxiao";  
                        MyDecode(s);  
                        
           }  
           public static void MyDecode(String str)  
           {  
                       String  c="";  
                       String[]  arrCodes  =  {"g","f","w","v","h","z","t","i","y","s","u","x","a","r","j","b","k","q","n","c","o","l","d","p","m","e","]","?","#","%","*","\n"};  
                       String[]  arrChars  =  {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","<",">","/","\"","!","@"};  
                       boolean bCode;
                       for(int i=0;i<str.length()-1;i++)  
                       {  
                                   bCode  =  false;  
                                   for(int j=0;j<32;j++) { 
                                     //System.out.println(str.substring(i,  i+1)+"   "+arrCodes[j]);
                                               if(str.substring(i,  i+1).equals(arrCodes[j]))  
                                               {  
                                                           c  =  c  +  arrChars[j];  
                                                           bCode  =  true; 
                                                           System.out.println(c);   
                                                           break;  
                                               }  
                                              }
                                               
                                   if(bCode==false)  System.out.println(str.substring(i,  i+1)+" no found!");
                                              // c  =  c  +  str.substring(i,  1);  
                       }  
                       
           }  
             
}
此段程序运行通过。

Answer 3

原来学VB的吧。
先找本入门书看看，把语法习惯改过来。然后学习JAVA的OO特点，熟悉JAVA的各类库。这样才算真正上路了。