1
VisualStudio, . .
#include "stdafx.h"
#include "math.h"
int _tmain(int argc, _TCHAR* argv[])
{
{ }
return 0;
}
#include "stdafx.h", stdafx.h, () , ,
(primary function),
int _tmain(int argc, _TCHAR* argv[])
, return 0; 0.
int ,
float ,
double ,
char .
printf , , ( , ), . .
, %. :
%d ,
%u ,
%f float ,
%lf double ,
%e ,
%g : .
,
int k=-25;
unsigned int j=7;
float x=-4.55;
double y=3.125E-2;
printf ("%d%u%f%lf",k,j,x,y);
-25 7 -4.5500000.031250
, escape-
'\a' '\07' '\x07'
'\b' '\08' '\x08
'\f' '\14' '\x0c
'\n' '\12' '\x0a'
'\r' '\15' '\x0d'
'\t' '\11' '\x09'
'\v' '\13' '\x0b'
'\\' '\134' '\x5c'
'\'' '\47' '\x27'
'\"' '\42' '\x22'
'\?' '\77' '\x77'
.
scanf , - , &. %:
%d ,
%u ,
%f float,
%lf double.
,
int k;
unsigned int j;
float x;
double y;
,
scanf ("%d %u %f %lf",&k,&j,&x,&y);
3 :
k ;
j ;
x float;
y double.