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Add study notes for 2025-08-19
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@@ -15,6 +15,17 @@ segment7,成都,前北师大学生,现cs在读,目前使用lens protocol
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## Notes
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<!-- Content_START -->
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# 2025-08-19
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`今日零碎小知识嘻嘻`
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- constructor里面可以使用后面定义的函数
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- 查重字符串数组(因为 Solidity 不允许直接用 `==` 比较两个串,所以用哈希值代替)
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- `public string[]`初始长度为0
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- 换算 1 ETH = 10^18 wei
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# 2025-08-18
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`今日零碎小知识嘻嘻`

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