‘DebugConfig‘ only refers to a type, but is being used as a value here.
錯誤消息： 試圖注入一個值，但實際上DebugConfig被定義成interface，只是一個類型： 將interface替換成abstract class後問題解決： class聲明瞭一個值，也聲明瞭一種類型，你可以把Man賦值給一個變量，所以class是一種值，也可以說imgss是一個Man(類型)，此時Man承擔了一種類型的角色。 interface聲明瞭一種類型，但是你不能把dogfood
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相關文章
- 1. Here is how to import a string as a module
- 2. Optional int parameter 'rank' is present but cannot be translated into a null value due to being dec
- 3. Optional long parameter 'userId' is present but cannot be translated into a null value due to being
- 4. Optional int parameter 'version' is present but cannot be translated into a null value due to being
- 5. vue 解決 error ‘xxxx‘ is assigned a value but never used no-unused-vars
- 6. "reason":"object mapping for [] tried to parse field [] as object, but found a concrete value"
- 7. connection is being used
- 8. What Is a Type?
- 9. Optional int parameter ‘safetyLevel‘ is present but cannot be translated into a null value
- 10. A value is trying to be set on a copy of a slice from a DataFrame