From d16a531dfe3118bfff39bc3c84795e49a80d048c Mon Sep 17 00:00:00 2001
From: alisa <2227642711@qq.com>
Date: Thu, 4 Apr 2019 10:19:39 +0800
Subject: [PATCH] ex5

---
 lib/anchor_end.js         | 5 +++++
 lib/anchor_start.js       | 6 +++++-
 lib/char_class.js         | 5 +++++
 lib/negated_char_class.js | 5 +++++
 4 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/lib/anchor_end.js b/lib/anchor_end.js
index 56e8b85..088918b 100644
--- a/lib/anchor_end.js
+++ b/lib/anchor_end.js
@@ -1,3 +1,8 @@
 module.exports = function (str) {
   // TOOD
+  const partten=/BANANAS$/;
+  let match=str.match(partten);
+  if(match!==null){
+    return true;
+  }
 }
\ No newline at end of file
diff --git a/lib/anchor_start.js b/lib/anchor_start.js
index 56e8b85..d60a2f3 100644
--- a/lib/anchor_start.js
+++ b/lib/anchor_start.js
@@ -1,3 +1,7 @@
 module.exports = function (str) {
-  // TOOD
+  const partten=/^LITERALLY/;
+  let match=str.match(partten);
+  if(match!==null){
+    return true;
+  }
 }
\ No newline at end of file
diff --git a/lib/char_class.js b/lib/char_class.js
index a08ee57..937abc2 100644
--- a/lib/char_class.js
+++ b/lib/char_class.js
@@ -1,3 +1,8 @@
 module.exports = function (str) {
   // TODO
+  const partten=/^[a14uo]/;
+  let match=str.match(partten);
+  if(match!==null){
+    return true;
+  }
 }
\ No newline at end of file
diff --git a/lib/negated_char_class.js b/lib/negated_char_class.js
index a08ee57..50fc684 100644
--- a/lib/negated_char_class.js
+++ b/lib/negated_char_class.js
@@ -1,3 +1,8 @@
 module.exports = function (str) {
   // TODO
+  const partten=/([^0-9]{1})([^A-Z])/;
+  let match=str.match(partten);
+  if(match!==null){
+    return true;
+  }
 }
\ No newline at end of file