char类型向char *类型转换，跌掉了好几回，这次该记住了！

char *在进行赋值之前一定要分配空间，不然果断挂掉！

代码：

       char fullPathNames[100] = "E:\using.mp3";
       int nLen = strlen(fullPathNames);       

       char *path = (char*)malloc(sizeof(char)*nLen);//不能忘了
       int i = 0;
	for(i=0; i<nLen; i++)
	{
		if(fullPathNames[i] != '\0')
		{
			path[i] = (char)fullPathNames[i];
		}		
	}
	path[i] = '\0';