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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # 內聯匯編(Inline Assembly) 為了增強對語言的細粒度的控制,特別是在寫通用庫時,可以在一個語言中交錯使用Solidity的語句來接近其中一個虛擬機。但由于EVM是基于棧執行的,所以有時很難定位到正確的棧槽位,從而提供正確的的參數或操作碼。Solidit的內聯匯編嘗試解決這個問題,但也引入了其它的問題,當你通過下述特性進行手動的匯編時: - 函數式的操作碼:`mul(1, add(2, 3))`代替`push1 3 push1 2 add push1 1 mul` - 本地匯編變量:`let x := add(2, 3) let y := mload(0x40) x := add(x, y)` - 訪問外部變量:`function f(uint x){ assembly { x := sub(x,1)}}` - 標簽支持:`let x := 10 repeat := sub(x, 1) jumpi(repeat, eq(x, 0))` [Solidity Assembly](blockchain-solidity-assembly.html)是對內聯匯編的詳細介紹。
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