Update0053.最大子序和，添加C#贪心

problems/0053.最大子序和.md

@@ -406,6 +406,26 @@ object Solution {
   }
 }
 ```
+### C#
+**贪心**
+```csharp
+public class Solution
+{
+    public int MaxSubArray(int[] nums)
+    {
+        int res = Int32.MinValue;
+        int count = 0;
+        for (int i = 0; i < nums.Length; i++)
+        {
+            count += nums[i];
+            res = Math.Max(res, count);
+            if (count < 0) count = 0;
+        }
+        return res;
+    }
+}
+```
+
 
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