with let: fn main() { let x: i32 = 10; println!("x: {x}"); // x = 20; // println!("x: {x}"); } • 取消註解 x = 20，證明變數預設為不可變動。如要允許變更，請加入 mut 關鍵字。 • 這裡的 i32 是變數型別。這是編譯器必須在編譯期間掌握的資訊，但透過型別推斷 (稍後會說明)， 程式設計師在許多情況下都能省略其型別宣告。 • &mut self：使用不重複且可變動的參照，從呼叫端借用物件。之後可以再次使用該物件。 • self：取得物件擁有權，並將其移出呼叫端。方法會成為物件的擁有者。系統會在方法傳回時捨棄 物件 (取消分配)，但如果其擁有權已明確傳送的情況例外。具備完整擁有權，不自動等同於具備可變 動性。 • mut self: same as above, but the method can mutate the free，或在其指向的記憶體釋出後取消參照指標。 • C++ 提供智慧指標 (unique_ptr、shared_ptr) 等工具，可利用有關呼叫解構函式的語言保證， 確保在函式傳回時釋出記憶體。但這些工具仍很容易遭到濫用，並且會產生類似 C 語言中的那些錯 誤。 • Java、Go 和 Python 會利用垃圾收集器來識別並捨棄無法再存取的記憶體。這能確保任何指標都 可以取消參照，進而消除 UAF (使用已釋放記憶體)

Copy/Paste Delete Mute Show/Hide Layers Sidebar Node Tool View 節點群組化 Interface Edit Group Make Group 取消群組 Group Insert Appending Node Groups Frame Node 屬性 Editing Reroute Node 屬性 介紹 The different node include an output node in the group, there will not be an output socket available from the group! 取消群組 Reference 所有模式 Node ‣ Ungroup Ctrl-Alt-G The Ctrl-Alt-G tool removes the group and places the node group from the selected nodes, see Make Group for more information. 取消群組 Removes the selected nodes from a group, see 取消群組 for more information. Group Input Adds a group input node, this serves

Copy/Paste Delete Mute Show/Hide Layers Sidebar Node Tool View 節點群組化 Interface Edit Group Make Group 取消群組 Group Insert Appending Node Groups Frame Node 屬性 Editing Reroute Node 屬性 介紹 The different node include an output node in the group, there will not be an output socket available from the group! 取消群組 Reference 所有模式 Node ‣ Ungroup Ctrl-Alt-G Removes the group and places the individual nodes into node group from the selected nodes, see Make Group for more information. 取消群組 Removes the selected nodes from a group, see 取消群組 for more information. Group Input Adds a group input node, this serves

Copy/Paste Delete Mute Show/Hide Layers Sidebar Node Tool View 節點群組化 Interface Edit Group Make Group 取消群組 Group Insert Appending Node Groups Frame Node 屬性 Editing Reroute Node 屬性 介紹 The different node include an output node in the group, there will not be an output socket available from the group! 取消群組 Reference Node ‣ Ungroup Ctrl-Alt-G Removes the group and places the individual nodes into your node group from the selected nodes, see Make Group for more information. 取消群組 Removes the selected nodes from a group, see 取消群組 for more information. Group Input Adds a group input node, this serves

Copy/Paste Delete Mute Show/Hide Layers Sidebar Node Tool View 節點群組化 Interface Edit Group Make Group 取消群組 Group Insert Reusing Node Groups Frame Node 屬性 Editing Reroute Node 屬性 介紹 Blender contains found in node groups, and should not be used in node groups either (only in the top-level node tree). 取消群組 Reference Node ‣ Ungroup Ctrl-Alt-G Removes the group and places the individual nodes into your node group from the selected nodes, see Make Group for more information. 取消群組 Removes the selected nodes from a group, see 取消群組 for more information. Group Input Adds a group input node, this serves

Copy/Paste Delete Mute Show/Hide Layers Sidebar Node Tool View 節點群組化 Interface Edit Group Make Group 取消群組 Group Insert Reusing Node Groups Frame Node 屬性 Editing Reroute Node 屬性 介紹 Blender contains found in node groups, and should not be used in node groups either (only in the top-level node tree). 取消群組 Reference Node ‣ Ungroup Ctrl-Alt-G Removes the group and places the individual nodes into your node group from the selected nodes, see Make Group for more information. 取消群組 Removes the selected nodes from a group, see 取消群組 for more information. Group Input Adds a group input node, this serves

Copy/Paste Delete Mute Show/Hide Layers Sidebar Node Tool View 節點群組化 Interface Edit Group Make Group 取消群組 Group Insert Appending Node Groups Frame Node 屬性 Editing Reroute Node 屬性 介紹 The different node include an output node in the group, there will not be an output socket available from the group! 取消群組 Reference Node ‣ Ungroup Ctrl-Alt-G Removes the group and places the individual nodes into your node group from the selected nodes, see Make Group for more information. 取消群組 Removes the selected nodes from a group, see 取消群組 for more information. Group Input Adds a group input node, this serves

Copy/Paste Delete Mute Show/Hide Layers Sidebar Node Tool View 節點群組化 Interface Edit Group Make Group 取消群組 Group Insert Reusing Node Groups Frame Node 屬性 Editing Reroute Node 屬性 介紹 Blender contains found in node groups, and should not be used in node groups either (only in the top-level node tree). 取消群組 Reference Node ‣ Ungroup Ctrl-Alt-G Removes the group and places the individual nodes into your node group from the selected nodes, see Make Group for more information. 取消群組 Removes the selected nodes from a group, see 取消群組 for more information. Group Input Adds a group input node, this serves

Copy/Paste Delete Mute Show/Hide Layers Sidebar Node Tool View 節點群組化 Interface Edit Group Make Group 取消群組 Group Insert Reusing Node Groups Frame Node 屬性 Editing Reroute Node 屬性 介紹 Blender contains found in node groups, and should not be used in node groups either (only in the top-level node tree). 取消群組 Reference Node ‣ Ungroup Ctrl-Alt-G Removes the group and places the individual nodes into your node group from the selected nodes, see Make Group for more information. 取消群組 Removes the selected nodes from a group, see 取消群組 for more information. Group Input Adds a group input node, this serves

rules 文件裏開頭的空格是 TAB 填充的。) 可能在 shell 或 Perl 腳本中你已經對第一行的形式很熟悉了，它告訴作業系統這個檔案應使用 /usr/bin/make 處理。 可以取消第 4 行的註釋，以設置 DH_VERBOSE 變量爲 1，於是 dh 命令就會輸出它將要使用的 dh_* 命令。你也可以在 此添加一行 export DH_OPTIONS=-v ，於是 dh_*