烫烫烫烫烫屯屯屯屯

#include<iostream>
using namespace std;
int main()
{
	char *s = (char*)malloc(10);
	cout<<s<<endl;
	char p[10];
	cout<<p<<endl;
}

出现以上原因都是由于内存没有初始化造成的，而对于栈中内存如果没有初始化，则会出现“烫烫烫烫烫烫”。对于堆中内存如果没有初始化，则会出现“屯屯屯屯屯”，有时候我们的数组没有结束符，输出数组也会有这些汉字的出现，就是因为没有结束符占用了后面的空闲的内存块即没有初始化的内存块

=============================

Value     Name           Description  
------   --------        ------------------------- 
0xCD     Clean Memory    Allocated memory via malloc or new but never  
                          written by the application.  
  
0xDD     Dead Memory     Memory that has been released with delete or free.  
                          Used to detect writing through dangling pointers.  
  
0xFD     Fence Memory    Also known as "no mans land." This is used to wrap  
                          the allocated memory (surrounding it with a fence)  
                          and is used to detect indexing arrays out of  
                          bounds or other accesses (especially writes) past 
                          the end (or start) of an allocated block. 
  
0xCC                     When the code is compiled with the /GZ option, 
                          uninitialized variables are automatically assigned  
                          to this value (at byte level).  
  
  
// the following magic values are done by the OS, not the C runtime: 
  
0xAB  (Allocated Block?) Memory allocated by LocalAlloc().  
  
0xBAADF00D Bad Food      Memory allocated by LocalAlloc() with LMEM_FIXED,but  
                          not yet written to.  
  
0xFEEEFEEE               OS fill heap memory, which was marked for usage,  
                          but wasn't allocated by HeapAlloc() or LocalAlloc().  
                          Or that memory just has been freed by HeapFree().