<分区>
所以，我目前正在阅读一本关于 C 语言的书，在练习中，我应该编写一个程序来获取用户的输入(1 到 12 之间的数字)并“掷”那个数量的骰子，并且然后显示结果。 问题是，当它随机化骰子数字时，所有结果都完全相同。我确实使用“srand((unsigned)time(NULL))”来播种。可能出了什么问题？
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int throw(void);
int main()
{
int many,x,sum;
sum = 0;
puts("R O L L ' E M !");
type:
printf("How many dice would you like to roll (1 - 12)? ");
scanf("%d",&many);
if(many>12) {
puts("You can roll up to 12 dice!");
goto type;}
if(many<1) {
puts("You need to roll at least one die!");
goto type;}
int num[many];
printf("\nRolling %d...\n",many);
puts("Here they come!");
printf(" ");
for(x=0;x<many;x++) /* Shows which die it is */
{
if(x>=9)
printf("%d ",x+1);
else
printf(" %d ",x+1);
}
putchar('\n');
for(x=0;x<many;x++) /* Thingy to illustrate the dice */
printf("+---");
puts("+");
for(x=0;x<many;x++) /* Shows dice results */
{
num[x] = throw();
printf("| %d ",num[x]);
sum = sum + num[x];
}
puts("|");
for(x=0;x<many;x++) /* Thingy to illustrate the dice */
printf("+---");
puts("+");
printf("Total = %d",sum); /* Shows total */
return(0);
}
int throw(void) /* "Throws" the dice, by randomizing a number between 1 and 6 */
{
int n;
srand((unsigned)time(NULL)); /* seed */
n = rand() % 6 + 1; /* randomizes and limits from 1 to 6 */
return(n);
}