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fix: code highlight #496

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merged 1 commit into from
May 11, 2023
Merged

fix: code highlight #496

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2 changes: 1 addition & 1 deletion 37_Signature/readme.md
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Expand Up @@ -110,7 +110,7 @@ ethereum.request({method: "personal_sign", params: [account, hash]})
![浏览器console调用metamask进行签名](./img/37-4.jpg)

**3-2. 利用web3.py签名：** 批量调用中更倾向于使用代码进行签名，以下是基于web3.py的实现。
```
```py
from web3 import Web3, HTTPProvider
from eth_account.messages import encode_defunct

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2 changes: 1 addition & 1 deletion 38_NFTSwap/readme.md
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Expand Up @@ -62,7 +62,7 @@ discord：[WTF Academy](https://discord.gg/5akcruXrsk)

`ERC721`的安全转账函数会检查接收合约是否实现了`onERC721Received()`函数，并返回正确的选择器`selector`。用户下单之后，需要将`NFT`发送给`NFTSwap`合约。因此`NFTSwap`继承`IERC721Receiver`接口，并实现`onERC721Received()`函数：

```
```solidity
contract NFTSwap is IERC721Receiver{

// 实现{IERC721Receiver}的onERC721Received，能够接收ERC721代币
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2 changes: 1 addition & 1 deletion 41_WETH/readme.md
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Expand Up @@ -39,7 +39,7 @@ discord：[WTF Academy](https://discord.gg/5akcruXrsk)

2. 取款：拆包装，用户销毁`WETH`，并获得等量的`ETH`。

```
```solidity
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

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1 change: 0 additions & 1 deletion 43_TokenVesting/readme.md
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Expand Up @@ -44,7 +44,6 @@ tags:
- `ERC20Released`：提币事件，当受益人提取释放代币时释放。

```solidity

contract TokenVesting {
// 事件
event ERC20Released(address indexed token, uint256 amount); // 提币事件
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