diff --git a/index.js b/index.js
index 989354d..9c03f9f 100644
--- a/index.js
+++ b/index.js
@@ -1,6 +1,6 @@
 /*
- * @Author: kael 
- * @Date: 2018-02-14 17:50:28 
+ * @Author: kael
+ * @Date: 2018-02-14 17:50:28
  * @Last Modified by: kael
  * @Last Modified time: 2018-07-10 16:50:09
  */
@@ -9,8 +9,9 @@ module.exports = {
   mobile: /^1\d{10}$/,
   qq: /^[1-9]\d{4,10}$/,
   number: /^[-+]?(?:\d+(?:\.\d*)|(?:\d*\.)?\d+)$/,
-  email: /^.$/,
-  url: /^.$/,
-  ipv4: /^.$/,
-  idcard: /^.$/,
-};
\ No newline at end of file
+  email: /^[a-zA-Z0-9]\w*@[\w-]+(\.[\w-]+)+$/,
+  url: /^(http(s)?:\/\/)?[\w-]+(\.[\w-]+)+$/,
+  ipv4: /^((\d{0,2}|1\d{2}|2[0-4]\d|25[0-5])\.){3}(\d{0,2}|1\d{2}|2[0-4]\d|25[0-5])$/,
+  idcard:
+    /^[1-9]\d{5}(18|19|20)?\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\d{2,3}[0-9Xx]$/,
+};