From 9f84671e690208a1b40debe15b1bfa624448f348 Mon Sep 17 00:00:00 2001
From: zhangzw <zhangzw@boqii.com>
Date: Wed, 2 Jun 2021 11:51:50 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A00494.=E7=9B=AE=E6=A0=87?=
 =?UTF-8?q?=E5=92=8C=20Go=E7=89=88=E6=9C=AC?=
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---
 problems/0494.目标和.md | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/problems/0494.目标和.md b/problems/0494.目标和.md
index c772a09d..c917ed5c 100644
--- a/problems/0494.目标和.md
+++ b/problems/0494.目标和.md
@@ -276,7 +276,35 @@ class Solution:
 ```
 
 Go：
-
+```go
+func findTargetSumWays(nums []int, target int) int {
+	sum := 0
+	for _, v := range nums {
+		sum += v
+	}
+	if target > sum {
+		return 0
+	}
+	if (sum+target)%2 == 1 {
+		return 0
+	}
+	// 计算背包大小
+	bag := (sum + target) / 2
+	// 定义dp数组
+	dp := make([]int, bag+1)
+	// 初始化
+	dp[0] = 1
+	// 遍历顺序
+	for i := 0; i < len(nums); i++ {
+		for j := bag; j >= nums[i]; j-- {
+			//推导公式
+			dp[j] += dp[j-nums[i]]
+			//fmt.Println(dp)
+		}
+	}
+	return dp[bag]
+}
+```