to_cm的专栏

 package testcount;import java.io.*;import javax.servlet.*;import javax.servlet.http.*;import java.util.*;import java.awt.*;import java.awt.image.*;import javax.imageio.*;public class TestCount ex

  /**   *表单过滤字符   **/ public String filter(String value){  value=value.replaceAll("&","&");  value=value.replaceAll("  value=value.replaceAll(">",">");  value=value.replaceAll(" "," ")

 随机验证码代码:package checkcode;import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.image.BufferedImage;import java.io.ByteArrayOutputStream;import java.io.IOException;imp