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Update 背包问题理论基础完全背包.md

添加 python3 版本代码

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Original file line number	Diff line number	Diff line change
`@@ -33,7 +33,7 @@`
`33`	`33`	`示例 3:`
`34`	`34`	`输入: amount = 10, coins = [10]`
`35`	`35`	`输出: 1`
`36`		`-`
	`36`	`+`
`37`	`37`	`注意,你可以假设:`
`38`	`38`
`39`	`39`	`* 0 <= amount (总金额) <= 5000`
`@@ -207,6 +207,21 @@ class Solution {`
`207`	`207`
`208`	`208`	`Python:`
`209`	`209`
	`210`	+```python3
	`211`	`+class Solution:`
	`212`	`+ def change(self, amount: int, coins: List[int]) -> int:`
	`213`	`+ dp = [0]*(amount + 1)`
	`214`	`+ dp[0] = 1`
	`215`	`+ # 遍历物品`
	`216`	`+ for i in range(len(coins)):`
	`217`	`+ # 遍历背包`
	`218`	`+ for j in range(coins[i], amount + 1):`
	`219`	`+ dp[j] += dp[j - coins[i]]`
	`220`	`+ return dp[amount]`
	`221`	+```
	`222`	`+`
	`223`	`+`
	`224`	`+`
`210`	`225`
`211`	`226`	`Go:`
`212`	`227`

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