1.1 Google Blockly概述 美国计算科学教育一直认为计算机作为当今各个领域的基础技术工具,有必要让学生尽早的了解和学习计算机工作原理,理解基础的编程思维.在2006年周以真教授提出计算思维概念,这很大程度上促进了人们对计算机编程教学的认识.图形化编程摒弃了繁琐的代码语法,以直观的图形化模块进行编程,其思想最早来源于西摩尔·帕伯特的心理学家在从事儿童学习的研究中发明的LOGO语言.近年来随着计算机技术的快速发展,出现了很多优秀的图像化编程工具提供给学生学习计算机程序设计,比如:Ali…
题目链接: 传送门 Prime Land Time Limit: 1000MS Memory Limit: 10000K Description Everybody in the Prime Land is using a prime base number system. In this system, each positive integer x is represented as follows: Let {pi}i=0,1,2,... denote the increasing…
作业:使用类的静态字段和构造函数,我们可以跟踪某个类所创建对象的个数.请写一个类,在任何时候都可以向它查询“你已经创建了多少个对象?”. 源代码: import java.util.Scanner; class sss123 { //将用来计次的变量times给初始值为0 public static int times=0; sss123() { //构造函数,每创建一个实例times就增加1 times=times+1; } } public class StaticValue { publi…
Wei Qing (died 106 BC) was a military general of the Western Han dynasty whose campaigns against the Xiongnu earned him great acclaim. He was a relative of Emperor Wu because he was the younger half-brother of Empress Wei Zifu (Emperor Wu’s wife) and…
Divided Land Time Limit: 8000/4000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 123 Accepted Submission(s): 64 Problem Description It’s time to fight the local despots and redistribute the land. There is a rect…
Uncle Tom's Inherited Land* Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2013 Accepted Submission(s): 830Special Judge Problem Description Your old uncle Tom inherited a piece of land from…
