在Python中，从“交互式编程环境”进入“代码编程环境”的方式是（）
A: File——Open
B: File——New File
C: File——Start
D: File——Save
A: File——Open
B: File——New File
C: File——Start
D: File——Save
举一反三
- 在3ds max中保存当前模型场景的命令是 （ ） A: File/Reset B: File/Open C: File/Save D: File/Merge
- 创建一个d盘aa文件夹下news.txt文件对象，以下正确的是 A: File file = new File("d:/aa"); B: File file = new File("d:/aa/news.txt"); C: File file = new File("d:/news.txt"); D: File file = new File("d:\aa\news.txt");
- 3.1 下面是创建File对象的语句,错误的是( ) A: File f=new File("d:\\text.txt"); B: File f=new File("d: "); C: File f=new File("d:","text.txt"); D: File f=new File("d:\text.txt");
- 下列__________说法是正确的？I:File file = new File("input.txt");try (Scanner input = new Scanner(file)) { String line = input.nextLine();}II:try (File file = new File("input.txt"); Scanner input = new Scanner(file);) { String line = input.nextLine();}III:File file;try (file = new File("input.txt"); Scanner input = new Scanner(file);) { String line = input.nextLine();}IV:File file;Scanner input;try (file = new File("input.txt"); input = new Scanner(file);) { String line = input.nextLine();} A: I B: II C: III D: IV
- 下面程序的运算结果是( )。 #include＜iostream＞ using namespace std; class A { public: virtual void fun()=0; }; class B:public A } public: void fun() {cout＜＜"new file"＜＜" ";} }; class C:public A { public： void fun() { cout＜＜"open file"＜＜" ";} }; void main() { A a, * p; B b;C c; p=&c; p-＞fun(); p=&b; } A: new file open file B: new file new file C: 编译出错 D: open file new file