diff --git a/problems/0322.零钱兑换.md b/problems/0322.零钱兑换.md
index 2c9ff8cf..cc288593 100644
--- a/problems/0322.零钱兑换.md
+++ b/problems/0322.零钱兑换.md
@@ -226,11 +226,11 @@ func coinChange1(coins []int, amount int) int {
 	for i := 0; i < len(coins); i++ {
 		// 遍历背包
 		for j := coins[i]; j <= amount; j++ {
-			//if dp[j-coins[i]] != math.MaxInt32 {
+			if dp[j-coins[i]] != math.MaxInt32 {
 				// 推导公式
 				dp[j] = min(dp[j], dp[j-coins[i]]+1)
-				fmt.Println(dp,j,i)
-			//}
+				//fmt.Println(dp,j,i)
+			}
 		}
 	}
 	// 没找到能装满背包的, 就返回-1