657.机器人能否返回原点 添加go版本

problems/0657.机器人能否返回原点.md

@@ -112,6 +112,25 @@ class Solution:
 ## Go
 
 ```go
+func judgeCircle(moves string) bool {
+    x := 0
+    y := 0
+    for i := 0; i < len(moves); i++ {
+        if moves[i] == 'U' {
+            y++
+        }
+        if moves[i] == 'D' {
+            y--
+        }
+        if moves[i] == 'L' {
+            x++
+        }
+        if moves[i] == 'R' {
+            x--
+        }
+    }
+    return x == 0 && y == 0;
+}
 ```
 
 ## JavaScript