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How to output negative numbers in C language?

How do you define a range in Python?

How is it represented in Java?

How to use debugging in Python?

How to find the specific implementation class in Java with multiple implementations?

How to integrate MyBatis in Spring Boot?

How to use the log function in Python?

How to edit in vi on Linux?

How to define an abstract class in Java?

How to convert variables to strings in the C language?