enum 枚举名称
{
标识符 = 整型常量,
标识符 = 整型常量,
标识符 = 整型常量,
标识符 = 整型常量
};
enum Test
{
TestA = 0,
TestB = 1,
TestC = 2,
TestD = 3
};
enum 枚举名称 枚举变量 = 枚举变量值;
enum Test test = TestB;
enum Test
{
TestA = 0,
TestB,
TestC,
TestD
} test;
typedef enum _Test
{
TestA = 0,
TestB,
TestC,
TestD
} Test;
Test test = TestB;
typedef enum
{
TestA = 0,
TestB,
TestC,
TestD
} Test;
Test test = TestB;
typedef NS_ENUM(NSInteger, Test)
{
TestA = 0,
TestB,
TestC,
TestD
};
typedef NS_OPTIONS(NSUInteger, Test) {
TestA = 1 << 0,
TestB = 1 << 1,
TestC = 1 << 2,
TestD = 1 << 3
};
typedef NS_OPTIONS(NSUInteger, Test) {
TestNone = 0,
TestA = 1 << 0,
TestB = 1 << 1,
TestC = 1 << 2,
TestD = 1 << 3
};
Test test = TestA | TestB; test |= TestC;
Test test = TestA | TestB | TestC; test ^= TestC;
Test test = TestA | TestB;
if (test & TestA)
{
NSLog(@"yes");
}
else
{
NSLog(@"no");
}
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