diff --git a/problems/0647.回文子串.md b/problems/0647.回文子串.md
index fbc9133e..45bb72be 100644
--- a/problems/0647.回文子串.md
+++ b/problems/0647.回文子串.md
@@ -227,6 +227,30 @@ Python：
 
 
 Go：
+```Go
+func countSubstrings(s string) int {
+    res:=0
+    dp:=make([][]bool,len(s))
+    for i:=0;i<len(s);i++{
+        dp[i]=make([]bool,len(s))
+    }
+
+    for i:=len(s)-1;i>=0;i--{
+        for j:=i;j<len(s);j++{
+            if s[i]==s[j]{
+                if j-i<=1{
+                    res++
+                    dp[i][j]=true
+                }else if dp[i+1][j-1]{
+                    res++
+                    dp[i][j]=true
+                }
+            }
+        }
+    }
+    return res
+}
+```