若有下列文档: <html><head><title>The Dormouse's story</title></head> <body> <p class="title"><b>The Dormouse's story</b></p> <p class="story">Once upon a time there were three little sisters; and their names were <a class="sister" href="http://example.com/elsie" id="link1">Elsie</a>, <a class="sister" href="http://example.com/lacie" id="link2">Lacie</a> and <a class="sister" href="http://example.com/tillie" id="link3">Tillie</a>; and they lived at the bottom of a well.</p> <p class="story">...</p> <div><!-- This is a comment --></div> </body> </html> 有一位同学编写了下列代码: bsoup = BeautifulSoup(htmlDoc,'html.parser') result = bsoup.p.string print(result) 此时,输出内容为( )。
若有下列文档: <html><head><title>The Dormouse's story</title></head> <body> <p class="title"><b>The Dormouse's story</b></p> <p class="story">Once upon a time there were three little sisters; and their names were <a class="sister" href="http://example.com/elsie" id="link1">Elsie</a>, <a class="sister" href="http://example.com/lacie" id="link2">Lacie</a> and <a class="sister" href="http://example.com/tillie" id="link3">Tillie</a>; and they lived at the bottom of a well.</p> <p class="story">...</p> <div><!-- This is a comment --></div> </body> </html> 有一位同学编写了下列代码: bsoup = BeautifulSoup(htmlDoc,'html.parser') result = bsoup.p.string print(result) 此时,输出内容为( )。
char *p="a string";该语句使指针变量p指向字符串“a string”,通过p可访问“a string”字符串的任何字符
char *p="a string";该语句使指针变量p指向字符串“a string”,通过p可访问“a string”字符串的任何字符
Proteins can be described as a string of beads. What is an alternative name for the string of beads ?</p></p>
Proteins can be described as a string of beads. What is an alternative name for the string of beads ?</p></p>
下面这些代码的功能是创建一个string对象 s,并将其内容设置为字符串 alohaworld ,正确的有: A: string s{'alohaworld'}; B: string s = string{"alohaworld"}; C: char* p = "alohaworld";string s(p); D: string s{'a','l','o','h','a','w','o','r','l','d'}; E: string s('a','l','o','h','a','w','o','r','l','d');
下面这些代码的功能是创建一个string对象 s,并将其内容设置为字符串 alohaworld ,正确的有: A: string s{'alohaworld'}; B: string s = string{"alohaworld"}; C: char* p = "alohaworld";string s(p); D: string s{'a','l','o','h','a','w','o','r','l','d'}; E: string s('a','l','o','h','a','w','o','r','l','d');
中国大学MOOC: 有以下代码:String s1 = Hello;String s2 = Hello;String s3 = Hellp;s3 = s3.replace(p, o);这里的s.replace(p, o)的功能是把所有的p都替换成o。以下哪句是正确的?
中国大学MOOC: 有以下代码:String s1 = Hello;String s2 = Hello;String s3 = Hellp;s3 = s3.replace(p, o);这里的s.replace(p, o)的功能是把所有的p都替换成o。以下哪句是正确的?
阅读下面代码: Person 类: public class Person { private String name; public String getName() { return name; } public void setName(String name) { this.name = name; } } Servlet1: request.getSession().setAttribute("name","zhangsan"); Person p = new Person(); p.setName("lisi"); request.getSession().setAttribute("person",p); Servlet2: String name1 = (String)request.getSession().getAttribute("name"); Person p = (Person)request.getSession().getAttribute("person"); response.getWriter().write(name1); if(p!=null)response.getWriter().write(p.getName()); 浏览器先访问Servlet1,再去访问Servlet2,输出的结果是:()
阅读下面代码: Person 类: public class Person { private String name; public String getName() { return name; } public void setName(String name) { this.name = name; } } Servlet1: request.getSession().setAttribute("name","zhangsan"); Person p = new Person(); p.setName("lisi"); request.getSession().setAttribute("person",p); Servlet2: String name1 = (String)request.getSession().getAttribute("name"); Person p = (Person)request.getSession().getAttribute("person"); response.getWriter().write(name1); if(p!=null)response.getWriter().write(p.getName()); 浏览器先访问Servlet1,再去访问Servlet2,输出的结果是:()
class Person{ static{ System.out.println(name); } private static String name = "hello"; } class Demo{ public static void main(String[] args){ Person p = null; } }
class Person{ static{ System.out.println(name); } private static String name = "hello"; } class Demo{ public static void main(String[] args){ Person p = null; } }
假定P指向的字符串为“string”,若要输出这个字符串的地址值,则使用()。 A: cout<<*p B: cout<<p C: cout<<&p D: cout<<(void*)p
假定P指向的字符串为“string”,若要输出这个字符串的地址值,则使用()。 A: cout<<*p B: cout<<p C: cout<<&p D: cout<<(void*)p
运行程序,程序运行结果是()。#include<iostream>#include<string>usingnamespacestd;intmain(){ A: 变量a的地址 B: string C: 变量p的地址 D: s
运行程序,程序运行结果是()。#include<iostream>#include<string>usingnamespacestd;intmain(){ A: 变量a的地址 B: string C: 变量p的地址 D: s
import java.io.*;</p></p> class Person{</p></p> public void print(){System.out.print("Person ");}</p></p> public void printMyGender(String s){</p></p> this.print();</p></p> System.out.print(s+" ");</p></p> }</p></p> }</p></p> class Gender{</p></p> String type="gender";</p></p> public void print(Person p){p.printMyGender(type);}</p></p> }</p></p> class Female extends Gender{</p></p> public Female(){</p></p> type="female";</p></p> }</p></p> }</p></p> class Male extends Gender{</p></p> public Male(){</p></p> type="male";</p></p> }</p></p> }</p></p> class Employee extends Person{</p></p> public void print(){</p></p> System.out.print("Employee ");}</p></p> }</p></p> class Manager extends Employee{</p></p> public void print(){</p></p> System.out.print("Manager ");}</p></p> }</p></p> public class Test{</p></p> public static void main(String[] args){</p></p> Manager man = new Manager();</p></p> Employee em = new Employee();</p></p> Gender gender1 = new Male();</p></p> Gender gender2 = new Female();</p></p> gender1.print(man);</p></p> gender2.print(em);</p></p> }</p></p> }</p></p> 对于以上代码,其运行结果是</p></p>
import java.io.*;</p></p> class Person{</p></p> public void print(){System.out.print("Person ");}</p></p> public void printMyGender(String s){</p></p> this.print();</p></p> System.out.print(s+" ");</p></p> }</p></p> }</p></p> class Gender{</p></p> String type="gender";</p></p> public void print(Person p){p.printMyGender(type);}</p></p> }</p></p> class Female extends Gender{</p></p> public Female(){</p></p> type="female";</p></p> }</p></p> }</p></p> class Male extends Gender{</p></p> public Male(){</p></p> type="male";</p></p> }</p></p> }</p></p> class Employee extends Person{</p></p> public void print(){</p></p> System.out.print("Employee ");}</p></p> }</p></p> class Manager extends Employee{</p></p> public void print(){</p></p> System.out.print("Manager ");}</p></p> }</p></p> public class Test{</p></p> public static void main(String[] args){</p></p> Manager man = new Manager();</p></p> Employee em = new Employee();</p></p> Gender gender1 = new Male();</p></p> Gender gender2 = new Female();</p></p> gender1.print(man);</p></p> gender2.print(em);</p></p> }</p></p> }</p></p> 对于以上代码,其运行结果是</p></p>