//运用流操作读取存放源程序的文本文件ceshi.txt
	char str;
	p = 0;
	ifstream inFile("ceshi.txt", ios::in | ios::binary); //二进制读方式打开所需读取的源程序
	if (!inFile) {
		cout << "error" << endl;
		return 0;
	}
	while (inFile.read((char*)&str, sizeof(str))) { //一直读到文件结束
		prog[p++] = str;
	}
	p = 0;
	ch = prog[p];
	while (prog[p] != NULL) {
		cout << prog[p++];
	}
	cout << endl;
	//将prog指针赋初值，对源程序进行词法、语法分析
	p = 0;
	ch = prog[p];
	scanner();
	Irparser();