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<div class="sidetoc"><nav class="pagetoc"></nav></div>
<main>
<ul dir="auto"><li><em>凹语言(Go实现, 面向WASM设计): <a href="https://github.com/wa-lang/wa">https://github.com/wa-lang/wa</a></em></li><li><em>WaBook(Go语言实现的MD电子书构建工具): <a href="https://github.com/wa-lang/wabook">https://github.com/wa-lang/wabook</a></em></li></ul><hr>
<ul dir="auto"><li><em>凹语言(Go实现, 面向WASM设计): <a href="https://github.com/wa-lang/wa">https://github.com/wa-lang/wa</a></em></li><li><em>《Go语言高级编程》: <a href="https://github.com/chai2010/advanced-go-programming-book">https://github.com/chai2010/advanced-go-programming-book</a></em></li></ul><hr>
<h2>13.1. unsafe.Sizeof, Alignof 和 Offsetof</h2>
<p>unsafe.Sizeof函数返回操作数在内存中的字节大小，参数可以是任意类型的表达式，但是它并不会对表达式进行求值。一个Sizeof函数调用是一个对应uintptr类型的常量表达式，因此返回的结果可以用作数组类型的长度大小，或者用作计算其他的常量。</p>