#### tp5 点击刷新验证码 ```` <form action="<{:url('index/index/login')}>" method="post" name="form1" > 　　<input type="text" name="username"><br> 　　<input type="text" name="password"><br> 　　<input type="text" name="captcha" placeholder="请输入验证码" required=""><br> 　　<img src="<{:captcha_src()}>" width="95" height="45" onclick="this.src='<{:captcha_src()}>'"><br><br> 　　<input type="submit"><br> </form> ----------------------------------------------------------------------------------------------------- $captcha = $_REQUEST['captcha']; if(!captcha_check($captcha)){ 　　//验证失败 　　$this->error('验证码输入错误'); }else{ 　　$this->success('验证码输入正确'); } ================================================ JS触发事件,提交后刷新验证码 <img src="<{:captcha_src()}>" id="verify_img" width="95" height="45" onclick="this.src='<{:captcha_src()}>'"> var img = document.getElementById('verify_img'); img.src = "<{:captcha_src()}>"; ================================================ ````