摘要:
生成验证码工具类 package com.util; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Renderin 阅读全文
摘要:
Char——>String String s = String.valueOf('c'); //单个字符 String s = String.valueOf(new char[]{'c'}); //转换数组 String s = Character.toString('c');//实际上直接返回St 阅读全文