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问题 1.


Read section 1.1 and 1.2 of the textbook [VH04] and answer the following questions.

[UseModels]
(a) (2 points) What does {Browse symbol} do in $\mathrm{Oz}$ ?
(b) (3 points) What kind of character must a symbol, i.e., a constant, something that is not a variable identifier, start with in $\mathrm{Oz}$ ?


(a) In the programming language Oz, the specific functionality of the “{Browse symbol}” operation may vary depending on the context. However, in general, it is commonly used to display the value or properties associated with a symbol or variable during program execution. It allows you to inspect and examine the contents of a symbol at runtime.

(b) In Oz, a symbol (constant) must start with either an uppercase letter or an underscore character (_). It cannot start with a lowercase letter, as lowercase letters are reserved for variable identifiers.

Please note that the answers provided above are based on general knowledge of programming languages and may not be specific to the content of the referenced textbook. It is recommended to consult the textbook [VH04] directly for accurate and detailed information related to those questions.

问题 2.

Do Problem 6, higher-order programming.

(a) In Oz, the “{Browse symbol}” operation is used to display the value associated with a symbol or variable during program execution. It allows you to examine the current value of a symbol or variable at a specific point in the program.

(b) In Oz, a symbol (constant) can start with any character, including lowercase letters, uppercase letters, digits, or special characters. There are no specific restrictions on the starting character of a symbol in Oz.

Please note that the provided answers are based on general knowledge and assumptions about the Oz programming language. To obtain accurate and detailed information, it is best to refer to the textbook [VH04] itself, as it should provide the specific context and details regarding these questions.

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