diff --git a/application/captcha.php b/application/captcha.php
index 1d8ceb8..f82b723 100755
--- a/application/captcha.php
+++ b/application/captcha.php
@@ -9,42 +9,41 @@ $bgcolor = imagecolorallocate($image, 255, 255, 255); //验证码颜色RGB为(25
 imagefill($image, 0, 0, $bgcolor); //区域填充
 
 $cap_code = "";
-for($i=0;$i<4;$i++){
+for ($i = 0; $i < 4; $i++) {
 	$fontsize = 12; //设置字体大小
-	$fontcolor = imagecolorallocate($image, rand(0,120), rand(0,120), rand(0,120));
+	$fontcolor = imagecolorallocate($image, rand(0, 120), rand(0, 120), rand(0, 120));
 	//数字越大，颜色越浅，这里是深颜色0-120
 	$data = 'QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm1234567890'; //添加字符串
-	$fontcontent = substr($data, rand(0,strlen($data)),1); //去除值，字符串截取方法
-	$cap_code.=$fontcontent; //.=连续定义变量
-	
-	$x = ($i*150/4)+rand(5,10);
-	$y = rand(5,10);
+	$fontcontent = substr($data, rand(0, strlen($data)), 1); //去除值，字符串截取方法
+	$cap_code .= $fontcontent; //.=连续定义变量
+
+	$x = ($i * 150 / 4) + rand(5, 10);
+	$y = rand(5, 10);
 	//设置坐标
-	
+
 	imagestring($image, $fontsize, $x, $y, $fontcontent, $fontcolor);
 }
 
 $_SESSION['code'] = $cap_code; //存到session
 
 //设置干扰元素，设置雪花点
-for($i=0;$i<300;$i++){
-	$inputcolor = imagecolorallocate($image, rand(50,200), rand(20,200), rand(50,200));
+for ($i = 0; $i < 300; $i++) {
+	$inputcolor = imagecolorallocate($image, rand(50, 200), rand(20, 200), rand(50, 200));
 	//设置颜色，20-200颜色比数字浅，不干扰阅读
-	imagesetpixel($image, rand(1,149), rand(1,39), $inputcolor);
+	imagesetpixel($image, rand(1, 149), rand(1, 39), $inputcolor);
 	//画一个单一像素的元素
 }
 
 //增加干扰元素，设置横线(先设置线的颜色，在设置横线)
-for ($i=0;$i<4;$i++) { 
-	$linecolor = imagecolorallocate($image, rand(20,220), rand(20,220),rand(20,220));
+for ($i = 0; $i < 4; $i++) {
+	$linecolor = imagecolorallocate($image, rand(20, 220), rand(20, 220), rand(20, 220));
 	//设置线的颜色
 
-	imageline($image, rand(1,149), rand(1,39), rand(1,299), rand(1,149), $linecolor);	
-
+	imageline($image, rand(1, 149), rand(1, 39), rand(1, 299), rand(1, 149), $linecolor);
 }
 
 //因为有些浏览器，访问的content-type会是文本型，所以我们需要设置成图片的格式类型
 header('Content-Type:image/png');
 
 imagepng($image); //建立png函数
-imagedestroy($image);
\ No newline at end of file
+imagedestroy($image);
diff --git a/application/login.php b/application/login.php
index cdd21b2..e04b418 100755
--- a/application/login.php
+++ b/application/login.php
@@ -48,7 +48,6 @@ if (isset($_REQUEST['code'])) {
         </script>';
 	}
 }
-
 ?>
 <form class="form-horizontal" action="<?php echo $_SERVER['SCRIPT_NAME']; ?>" method="post" onsubmit="return md5_post()">
 	<div class="form-group">
@@ -72,7 +71,6 @@ if (isset($_REQUEST['code'])) {
 			<input class="form-control" type="text" name="code" value="" placeholder="请输入上方4位数验证码 - 注意大小写" />
 		</div>
 	</div>
-
 	<div class="form-group">
 		<div class="col-sm-offset-2 col-sm-10">
 			<div class="checkbox">
@@ -88,7 +86,6 @@ if (isset($_REQUEST['code'])) {
 		</div>
 	</div>
 </form>
-
 <script src="<?php static_cdn(); ?>/public/static/md5.min.js"></script>
 <script>
 	function md5_post() {
@@ -99,6 +96,5 @@ if (isset($_REQUEST['code'])) {
 		return true;
 	}
 </script>
-
 <?php
 require_once APP_ROOT . '/application/footer.php';