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aqandy 2003-10-21
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明白了谢谢,我是按书里写的
书上就写“c=1;”的，我看这书有问题再次谢谢大家，我是初学者
书上就写“c=1;”的，我看这书有问题再次谢谢大家，我是初学者
SeainBlue 2003-10-21
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下面是msdn上的example
// Example of the enum keyword
enum Days // Declare enum type Days
{
saturday, // saturday = 0 by default
sunday = 0, // sunday = 0 as well
monday, // monday = 1
tuesday, // tuesday = 2
wednesday, // etc.
thursday,
friday
} today; // Variable today has type Days
int tuesday; // Error, redefinition of tuesday
enum Days yesterday; // Legal in C and C++
Days tomorrow; // Legal in C++ only
yesterday = monday;
int i = tuesday; // Legal; i = 2
yesterday = 0; // Error; no conversion
yesterday = (Days)0; // Legal, but results undefined
--------------------------------------------------------------------------------
// Example of the enum keyword
enum Days // Declare enum type Days
{
saturday, // saturday = 0 by default
sunday = 0, // sunday = 0 as well
monday, // monday = 1
tuesday, // tuesday = 2
wednesday, // etc.
thursday,
friday
} today; // Variable today has type Days
int tuesday; // Error, redefinition of tuesday
enum Days yesterday; // Legal in C and C++
Days tomorrow; // Legal in C++ only
yesterday = monday;
int i = tuesday; // Legal; i = 2
yesterday = 0; // Error; no conversion
yesterday = (Days)0; // Legal, but results undefined
--------------------------------------------------------------------------------
akiko 2003-10-21
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enum类型的语法就是这样的，c只能赋red,blue,yellow这3个值
SeainBlue 2003-10-21
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跟踪一下：
c=(color)1;
返回的c是 blue，应该没错的
c=(color)1;
返回的c是 blue，应该没错的
SeainBlue 2003-10-21
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c=(color)1;//这样就没错了
关键是类型的问题，虽然默认是0、1、2...但是还是得用类型转换才行
关键是类型的问题，虽然默认是0、1、2...但是还是得用类型转换才行
