c语言的随机函数在TC和VC中是什么呀？

[hewei1999]

c语言的随机函数在TC中好像是random()，在VC中好像是rand()是吗 在头文件中写什么呀？在函数中怎么用呀 !高手请教？？？？？？

[JerrySabrina]

Routine Required Header
rand <stdlib.h>

[snow810211]

rand <stdlib.h>
Example
/* RAND.C: This program seeds the random-number generator
* with the time, then displays 10 random integers.
*/

#include <stdlib.h>
#include <stdio.h>
#include <time.h>

void main( void )
{
int i;

/* Seed the random-number generator with current time so that
* the numbers will be different every time we run.
*/
srand( (unsigned)time( NULL ) );

/* Display 10 numbers. */
for( i = 0; i < 10;i++ )
printf( " %6d\n", rand() );
}

Output
6929
8026
21987
30734
20587
6699
22034
25051
7988
10104

[jin_xiaolu2000]

#include <stdlib.h>
#include <stdio.h>
#include <time.h>
int main(void)
{
randomize();
printf("Random number in the 0-99 range: %d
", random (100));
return 0;
}

c中的random
srand( (unsigned)time( NULL ) );产生种子，然后使用rand()
random()会自动调GetTickCount（）得到一个数