转移运算符
使用 ^ 符号移动值
转移运算符 是 CoddyKit 上的免费 Mojo Academy 课时。 这是第 4 节课，共 4 节。 你可以在下方免费阅读本课时的完整内容 — 然后在浏览器中使用内置代码编辑器和全天候 AI 导师进行实践。 这是 Mojo Academy 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Mojo Academy 课程共包含 4 节课。
本课时的部分内容尚未翻译，以英文显示。
Move, Don't Copy
Passing to an owned parameter usually makes a copy. But if you are done with the original, copying is wasteful. You can move it instead. 🚚
Meet the Transfer Operator
Mojo's transfer operator is the caret ^ sigil. You place it after a value to hand its ownership over instead of duplicating it.
Using It in a Call
Add ^ when calling a function with an owned parameter. The value transfers in, and no copy is made.
var msg = String("hi")
consume(msg^)The Original Is Gone
After a transfer, the source variable is no longer valid. Mojo ends its lifetime, so you cannot accidentally use the moved value.
The Compiler Enforces It
Try to read a variable after moving it and the compiler rejects your code. This check stops use-after-move bugs before they run.
Why Moving Is Faster
A move just transfers ownership of the existing data. There is no deep copy, which matters a lot for big strings, lists, or buffers.
Copy or Move, Your Choice
Without ^ Mojo copies into an owned parameter; with ^ it moves. You decide based on whether you still need the original.
Transfer on Assignment
The caret also works between variables. Writing one var from another with ^ moves the value rather than copying it across.
var a = String("data")
var b = a^ # a is now invalidPairs With owned
The transfer operator is the natural partner of owned parameters. Together they express giving a value away cleanly and cheaply.
Safety Plus Speed
Moves give you C-like efficiency while the compiler guarantees you never touch a value after handing it off. That is safe and fast.
The Full Ownership Picture
borrowed, inout, owned, and the ^ transfer together let you control exactly how data flows through your program, with no surprises.
Quick Check
Let us check what the ^ operator does to the source.
Recap
The ^ transfer operator moves a value instead of copying it, ending the source's life. Paired with owned, it makes giving data away fast and safe. 🎯
常见问题解答
「转移运算符」课时是免费的吗？
是的 — 「转移运算符」的完整文本可在网页上免费阅读。要进行交互式练习（内置代码编辑器和全天候 AI 导师）并解锁 Mojo Academy 课程的其余内容，请升级到 CoddyKit PRO。 Mojo Academy 课程共包含 4 节课。
「转移运算符」这节课中我会学到什么？
使用 ^ 符号移动值 你通过在浏览器中直接运行的动手代码来练习 Mojo Academy，全天候 AI 导师会在你学习这节课的过程中回答你的问题。
学习 Mojo Academy 需要有经验吗？
无需任何先前经验。CoddyKit 上的 Mojo Academy 课程适合初学者到高级学习者，你可以从这里开始或从头开始，按照自己的节奏学习。 这是第 4 节课，共 4 节。
「转移运算符」课时需要多长时间？
大多数 CoddyKit 课程大约需要 5–10 分钟。每节课都很精短且互动，所以你能稳步进步，并在网页和应用中从离开的地方继续。
我能在这节 Mojo Academy 课中编写并运行代码吗？
能。每节 Mojo Academy 课都包含内置代码编辑器，你可以在浏览器中直接编写并运行真实代码，并获得即时 AI 反馈 — 无需本地设置。