它可能会因未调用构造函数而使用未初始化的内存而导致随机行为或系统崩溃。
It might cause random behavior or crashes due to usage of uninitialized memory because constructors are not invoked.
在调试版本中msvc编译器添加额外的数据来检测缓冲区溢出和使用未初始化的内存。
In debug builds the MSVC compiler adds in extra data to help detect buffer overflows and use of uninitialized memory.
对大多数的编译器来说，如果使用未初始化的指针，会将指针中存放的不确定值视为地址，然后操纵该内存地址中存放的位内容。
Under most compilers, if we use an uninitialized pointer the effect will be to use whatever bits are in the memory in which the pointer resides as if it were an address.
因此，恰好在随后使用相同堆栈区域的未初始化堆栈变量就可能返回上次使用该堆栈内存时留下的值。
Therefore, subsequent, uninitialized stack variables that happen to use the same stack area can return values left over from the prior use of this stack memory.
因此，恰好在随后使用相同堆栈区域的未初始化堆栈变量就可能返回上次使用该堆栈内存时留下的值。
Therefore, subsequent, uninitialized stack variables that happen to use the same stack area can return values left over from the prior use of this stack memory.
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