补充不完整的例子 #12
Open
补充不完整的例子 #12
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
added 3 commits
August 22, 2025 22:09
--> src/main.rs:44:16 | 44 | sum += adder.compute(10); // 隐式转换 i32 到 i64 | ^^^^^^^^^^^^^^^^^ expected , found error[E0277]: cannot add-assign to
0xganz
reviewed
Aug 29, 2025
tutorial/10_trait_objects.md
Outdated
| let mut sum: i64 = 0; | ||
| for _ in 0..1000000 { | ||
| sum += adder.compute(10); // 隐式转换 i32 到 i64 | ||
| sum += adder.compute(10) as i64; // 隐式转换 i32 到 i64 |
Author
There was a problem hiding this comment.
加了
as i64，就不是隐式转换了
是的是的，忘了改之前的注释，rust不支持这种隐式转换。重新改了一下注释
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
No description provided.