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Update readme.md #230

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4 changes: 2 additions & 2 deletions docs/solidity-102/17_Library/readme.md
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Expand Up @@ -36,7 +36,7 @@ tags:
3. 不能接收以太币
4. 不可以被销毁

需要注意的是，库合约重的函数可见性如果被设置为`public`或者`external`，则在调用函数时会触发一次`delegatecall`。而如果被设置为`internal`，则不会引起。对于设置为`private`可见性的函数来说，其仅能在库合约中可见，在其他合约中不可用。
需要注意的是，库合约中的函数可见性如果被设置为`public`或者`external`，则在调用函数时会触发一次`delegatecall`。而如果被设置为`internal`，则不会引起。对于设置为`private`可见性的函数来说，其仅能在库合约中可见，在其他合约中不可用。


## Strings库合约
Expand Down Expand Up @@ -146,4 +146,4 @@ library Strings {
3. [Create2](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/4a9cc8b4918ef3736229a5cc5a310bdc17bf759f/contracts/utils/Create2.sol)：更安全的使用`Create2 EVM opcode`
4. [Arrays](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/4a9cc8b4918ef3736229a5cc5a310bdc17bf759f/contracts/utils/Arrays.sol)：跟数组相关的库合约

<LessonQuizStart meta={require('./meta.json')} />
<LessonQuizStart meta={require('./meta.json')} />