添加 0027.移除元素.md Scala版本

problems/0027.移除元素.md

@@ -328,6 +328,20 @@ int removeElement(int* nums, int numsSize, int val){
     return slow;
 }
 ```
-
+Scala:
+```scala
+object Solution {
+  def removeElement(nums: Array[Int], `val`: Int): Int = {
+    var slow = 0
+    for (fast <- 0 until nums.length) {
+      if (`val` != nums(fast)) {
+        nums(slow) = nums(fast)
+        slow += 1
+      }
+    }
+    slow
+  }
+}
+```
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