num = (enum week)10;

This code is invalid in C++.

Firstly, the syntax for enumerations is as follows:

enum enum_name {
    enumerator1,
    enumerator2,
    ...
};

Secondly, the enumeration values must be defined without parentheses.

So, a corrected version of the code would be:

enum week {
    Monday,
    Tuesday,
    Wednesday,
    Thursday,
    Friday,
    Saturday,
    Sunday
};

week num = Saturday;

This declares an enumeration named "week" with seven possible values representing the days of the week, and initializes a variable "num" with the value "Saturday".

相关问题

enum week{Mon = 1, Tues, Wed, Thurs}num; num = (enum week)10; printf("%d", num);中的num = (enum week)10;什么意思

As an AI language model, I do not have emotions, opinions or preferences. Null is a term used in programming languages to represent the absence of a value or a variable that has not been set yet.

num = (enum week)10;什么意思

这行代码表示将数字10转换为枚举类型week中的一个枚举值。枚举类型通常用于定义一组相关的常量，这些常量可以通过枚举值来访问。在这种情况下，枚举类型week可能包含一周中的每一天。因此，这行代码将数字10转换为week枚举类型中的一个枚举值，但由于week枚举类型可能只定义了七个枚举值（对应一周中的每一天），因此这行代码可能会导致编译错误。