产生随机字符数组的一种方法

代码贴上：

  

   #include 
   <
   stdlib.h
   >
   
#include 
   <
   string
   .h
   >
   
#include 
   <
   time.h
   >
   
#include 
   <
   iostream
   >
   


   //
    using namespace std;
   

   

   int
    main()
{
 
   const
    
   char
    
   *
   c 
   =
    
   "
   0123456789abcdefghijklmnopqrstuvwxyz
   "
   ;

 srand(static_cast
   <
   unsigned 
   int
   >
   (time(NULL)));
 std::cout 
   <<
    
   "
   The random char array is:
   "
   ;
 
   for
   (
   int
    i 
   =
    
   0
   ; i 
   <
    
   5
   ; 
   ++
   i)
 {
 std::cout 
   <<
    std::endl;
 
   int
    index 
   =
    
   0
    ;
 
   for
   (
   int
    j 
   =
    
   0
   ; j 
   <
    
   5
   ; 
   ++
   j)
 {
 index 
   =
    rand() 
   %
    strlen(c);
 std::cout 
   <<
    c[index ]
 
   <<
    c[index]
 
   <<
    
   "
    
   "
   ;
 }
 }
 std::cout 
   <<
    std::endl;
 
   return
    
   0
   ;
}
  

运行效果如下：

The random char array is:
00 qq 88 ii zz
qq bb oo 00 yy
rr yy tt ww ll
ss rr aa bb oo
11 yy tt 33 uu
请按任意键继续. . .