Merge pull request #2863 from Cwlrin/master

docs：补充【0459.重复的子字符串.md】的 JavaScript 、C# 代码

Author: youngyangyang04

problems/0459.重复的子字符串.md

@@ -689,6 +689,29 @@ var repeatedSubstringPattern = function (s) {
 };
 ```
 
+> 正则匹配
+```javascript
+/**
+ * @param {string} s
+ * @return {boolean}
+ */
+var repeatedSubstringPattern = function(s) {
+  let reg = /^(\w+)\1+$/
+  return reg.test(s)
+};
+```
+> 移动匹配
+```javascript
+/**
+ * @param {string} s
+ * @return {boolean}
+ */
+var repeatedSubstringPattern = function (s) {
+    let ss = s + s;
+    return ss.substring(1, ss.length - 1).includes(s);
+};
+```
+
 ### TypeScript:
 
 > 前缀表统一减一
@@ -894,8 +917,10 @@ impl Solution {
 }
 ```
 ### C#
+
+> 前缀表不减一
+
 ```csharp
-// 前缀表不减一
 public bool RepeatedSubstringPattern(string s)
 {
     if (s.Length == 0)
@@ -920,6 +945,13 @@ public int[] GetNext(string s)
 }
 ```
 
+> 移动匹配
+```csharp
+public bool RepeatedSubstringPattern(string s) {
+    string  ss = (s + s).Substring(1, (s + s).Length - 2);
+    return ss.Contains(s);
+}
+```
 ### C
 
 ```c