随机生成26个小写字母和26个大写字母

#include<stdio.h>

char RandString();

int main( void )

{

int i=0;

char cTemp;

char sKey[9];

memset(&cTemp, 0, sizeof(cTemp));

memset(sKey, 0, sizeof(sKey));

srand((unsigned )time(NULL));

for(; i<8; i++)

{

cTemp = RandString();

sKey[i] = cTemp;

}

sKey[8]=‘\0‘;

printf("sKey[%s]\n", sKey);

return 0;

}

char RandString()

{

int j = rand()%2;

char temp;

int m = 0;

if( j==0 )

{

temp =‘a‘;

}

else

{

temp=‘A‘;

}

m = rand()%26;

temp = temp + m;

return temp;

}

运行结果：

sKey[ycePuTLP]

随机生成26个小写字母和26个大写字母