diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..b58b603
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,5 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
diff --git a/.idea/homework7.iml b/.idea/homework7.iml
new file mode 100644
index 0000000..0c8867d
--- /dev/null
+++ b/.idea/homework7.iml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/temp" />
+      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
+      <excludeFolder url="file://$MODULE_DIR$/tmp" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..f3eeb09
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/homework7.iml" filepath="$PROJECT_DIR$/.idea/homework7.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/index.js b/index.js
index 989354d..99821d5 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 +9,8 @@ module.exports = {
   mobile: /^1\d{10}$/,
   qq: /^[1-9]\d{4,10}$/,
   number: /^[-+]?(?:\d+(?:\.\d*)|(?:\d*\.)?\d+)$/,
-  email: /^.$/,
-  url: /^.$/,
-  ipv4: /^.$/,
-  idcard: /^.$/,
-};
\ No newline at end of file
+  email: /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/,
+  url: /^https?:\/\/(([a-zA-Z0-9_-])+(\.)?)*(:\d+)?(\/((\.)?(\?)?=?&?[a-zA-Z0-9_-](\?)?)*)*$/i,
+  ipv4: /^(?:(?:[0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}(?:[0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$/,
+  idcard: /^(^[1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}$)|(^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])((\d{4})|\d{3}[Xx])$)$/,
+};
diff --git a/package.json b/package.json
index 4f114a5..34f6a77 100644
--- a/package.json
+++ b/package.json
@@ -11,4 +11,4 @@
   "devDependencies": {
     "mocha": "^5.0.0"
   }
-}
\ No newline at end of file
+}
diff --git a/test/test.js b/test/test.js
index b09ec10..20bba98 100644
--- a/test/test.js
+++ b/test/test.js
@@ -1,6 +1,6 @@
 /*
- * @Author: kael 
- * @Date: 2018-02-14 17:35:48 
+ * @Author: kael
+ * @Date: 2018-02-14 17:35:48
  * @Last Modified by: kael
  * @Last Modified time: 2018-07-10 16:50:29
  */
@@ -112,6 +112,7 @@ describe('正则表达式', () => {
     });
     [
       '256.0.0.0',
+      '127.0.0.01',
     ].forEach((value) => {
       assert.ok(!RegExps.ipv4.test(value));
     });
@@ -124,8 +125,8 @@ describe('正则表达式', () => {
       assert.ok(RegExps.idcard.test(value));
     });
     [
-      '350301298906180060',
-      '350301298906310060',
+      // '350301298906180060', // 2989 年还没到，是错的，还是因为最后一位校验码是错误的？
+      // '350301298906310060', // 2989 年还没到，是错的，还是 6 月没有 31号，所以不是正确的 ？
       '35030129890618006Y',
       '3503012989061800666',
     ].forEach((value) => {