Fix keccak256(abi.encodePacked(addr, index)) => keccak256(abi.encode(…

[LingYe-WEB3]

…addr, index))

What type of PR is this (这是什么类型的PR)

• [✅ ] Typo(勘误)
• BUG(程序错误)
• Improvement(提升)
• Feature(新特性)

Which issue(s) this PR fixes(Optional) (这个PR 修复了什么问题 (可选择))

• resolve(修复) : #

What this PR does / why we need it (这个PR 做了什么/ 我们为什么需要这个PR)

在solidity的mapping计算插槽位置的计算方式错误，由abi.encodePacked更新为abi.encode

[XdpCs]

@LingYe-WEB3 能提供你的参考资料吗？
最好是Solidity官方的文档

[XdpCs]

The value corresponding to a mapping key k is located at keccak256(h(k) . p) where . is concatenation and h is a function that is applied to the key depending on its type:

• for value types, h pads the value to 32 bytes in the same way as when storing the value in memory.
• for strings and byte arrays, h(k) is just the unpadded data.

ref: https://docs.soliditylang.org/en/v0.8.28/internals/layout_in_storage.html

[XdpCs]

The value corresponding to a mapping key k is located at keccak256(h(k) . p) where . is concatenation and h is a function that is applied to the key depending on its type:

• for value types, h pads the value to 32 bytes in the same way as when storing the value in memory.
• for strings and byte arrays, h(k) is just the unpadded data.

ref: https://docs.soliditylang.org/en/v0.8.28/internals/layout_in_storage.html

可能需要把这个重新整理一下 进入教程

[LingYe-WEB3]

The value corresponding to a mapping key k is located at keccak256(h(k) . p) where . is concatenation and h is a function that is applied to the key depending on its type:

• for value types, h pads the value to 32 bytes in the same way as when storing the value in memory.
• for strings and byte arrays, h(k) is just the unpadded data.

ref: https://docs.soliditylang.org/en/v0.8.28/internals/layout_in_storage.html

可能需要把这个重新整理一下 进入教程

好的，那我更新一下这个分支，把这些信息写入教程。

[LingYe-WEB3]

"Update the method for reading the storage location of mappings."

[LingYe-WEB3]

@XdpCs 我根据Solidity官方的文档更新了mapping数据存储位置的计算方式。希望能够教程有所帮助。

[LingYe-WEB3]

@XdpCs 我根据Solidity官方的文档更新了mapping数据存储位置的计算方式。希望能够教程有所帮助。

ref: https://docs.soliditylang.org/en/v0.8.28/internals/layout_in_storage.html