匈牙利表示法（Hungarian Notation)

对变量命名有很大帮助，来自 Learn Cpp.Com。

The type prefix indicates the data type of the variable.

Type prefix	Meaning	Example
b	boolean	bool bHasEffect;
c (or none*)	class	Creature cMonster;
ch	char (used as a char)	char chLetterGrade;
d	double, long double	double dPi;
e	enum	Color eColor;
f	float	float fPercent;
n	short, int, long char used as an integer	int nValue;
s	struct	Rectangle sRect;
str	C++ string	std::string strName;
sz	Null-terminated string	char szName[20];

The following type modifiers are placed before the prefix if they apply:

Type modifier	Meaning	Example
a	array on stack	int anValue[10];
p	pointer	int pnValue;
pa	dynamic array	int panValue = new int[10];
r	reference	int rnValue;
u	unsigned	unsigned int unValue;

The following scope modifiers are placed before the type modifier if they apply:

Scope modifier	Meaning	Example
g_	global variable	int g_nGlobalValue;
m_	member of class	int m_nMemberValue;
s_	static member of class	int s_nValue;