c语言二维字符数组的初始化和赋值

char *argv[256];//二维字符数组
	memset(argv,0,256);
	for(int j=0;j<256;j++)//二维字符数组初始化申请内存
	{
		argv[j]=(char*)malloc(sizeof(char*));
	}
	//argv=(char*[256])malloc(256);

	std::vector<std::string> results=StringSplit(cmd," ");
	for (int i=0;i<results.size();i++)
	{
		string tmp=results.at(i);
		strcpy(argv[argc++],tmp.c_str());//二维字符数组赋值
		DebugA("%s
",tmp.c_str());

	}

//c 语言获取数组长度
	#define GET_ARRAY_LEN(array,len) {len = (sizeof(array) / sizeof(array[0]));} 
	const char* apks[]={"/system/app/xxx.apk","/system/app/xxx_ui.apk"};
	int i=0;
	int array_len=0;
	GET_ARRAY_LEN(apks,array_len);
	for(i=0;i<array_len;i++)
	{

		const char* path=apks[i];
		printf("%s
",path);
	}