Common C_c ++ code

# Include <iostream>
# Include <time. h>
Int main ()
{
Time_t curtime = time (0 );
TM Tim = * localtime (& curtime );
Int day, Mon, year;
Day = Tim. tm_mday;
MON = Tim. tm_mon;
Year = Tim. tm_year;

STD: cout <year + 1900 <"year" <mon + 1 <"month" <day <"day" <STD: Endl;

System ("pause ");
Return 0;

}

//// Process the input parameters with an indefinite length, which is generally used to print logs.

Writelog (char * format ,...)

{

Va_list ARGs;

Char Buf [4096];

Memset (BUF, 0,4096 );

Va_start (ARGs, format );

Vsprintf_s (& Buf [strlen (BUF)], 4096, format, argS );

Va_end (ARGs );

String strresult (BUF );

... // Perform other operations as follows

}

//// A and B mutual references

//// In the. h file:

Class B; // note that a. h cannot contain B. H.

....

Void fun (B * pb );

//// End of a. h

//// A. cpp file:

# Include "B. H"

Void fun (B * pb)

{....};

... // End of A. cpp

///// In the B. H file

# Include "A. H"

A * m_pa;

.....

//// End of B. H

///// In the B. cpp File

# Include "B. H"

....

M_pa = xxxx;

//// // End of B. cpp