主題
拿前2篇寫的範例改造
Before:
namespace Tools
{
const int GetBuildDate(char *buffer)
{
return sprintf(buffer, "%s", __DATE__);
}
const int GetBuildTime(char *buffer)
{
return sprintf(buffer, "%s", __TIME__);
}
const int GetFilePath(char *buffer)
{
return sprintf(buffer, "%s", __FILE__);
}
const int GetLineNumber(char *buffer)
{
return sprintf(buffer, "%d", __LINE__);
}
}
char buildInfo[128];
int buildInfoLen = -1;
buildInfoLen = Tools::GetBuildDate(buildInfo);
After:
namespace Tools
{
class Functions
{
public:
static const int GetBuildDate(char *buffer)
{
return sprintf(buffer, "%s", __DATE__);
}
static const int GetBuildTime(char *buffer)
{
return sprintf(buffer, "%s", __TIME__);
}
static const int GetFilePath(char *buffer)
{
return sprintf(buffer, "%s", __FILE__);
}
static const int GetLineNumber(char *buffer)
{
return sprintf(buffer, "%d", __LINE__);
}
};
}
char buildInfo[128];
int buildInfoLen = -1;
buildInfoLen = Tools::Functions::GetBuildDate(buildInfo);
隨著功能的擴充，C的做法就是一直擴充方法，但從物件導向的角度看，都是公開的(public)方法，
但只要稍微做一些改造，就能擁有封裝(Encapsulation)和繼承(Inheritance)等物件導向特性
class Functions
{
private:
protected:
public:
};
class TimeFuncs : public Functions
{
private:
protected:
public:
};
class LogFuncs : public Functions
{
private:
protected:
public:
};
C的結構(struct)是用來包裝公開的(public)欄位和方法，也是可以改造成class
Before:
struct MySample
{
};
After:
class MySample
{
};
達人
