Frees an unmanaged string pointer that was allocated using the 释放非托管字符串指针，该指针是使用
2.
Warning c6298 : using a read - only string pointer as a writable string argument : this will attempt to write into static read - only memory and cause random crashes 警告c6298 ：将只读字符串< pointer >用作可写字符串参数:这样会导致试图写入静态只读内存并造成随机性故障
