• 2022-05-29 问题

    在MySQL程序中,声明局部变量p_name并赋值'软件工程'的正确指令有______。( ) A: DECLARE p_name VARCHAR(4) DEFAULT '软件工程'; B: DECLARE p_name VARCHAR(4) ;SET p_name:= '软件工程'; C: DECLARE p_name VARCHAR(4) ;SET p_name= '软件工程'; D: DECLARE p_name VARCHAR(4) ;SELECT '软件工程' INTO p_name;

    在MySQL程序中,声明局部变量p_name并赋值'软件工程'的正确指令有______。( ) A: DECLARE p_name VARCHAR(4) DEFAULT '软件工程'; B: DECLARE p_name VARCHAR(4) ;SET p_name:= '软件工程'; C: DECLARE p_name VARCHAR(4) ;SET p_name= '软件工程'; D: DECLARE p_name VARCHAR(4) ;SELECT '软件工程' INTO p_name;

  • 2022-07-29 问题

    能将字符串存储到name数组中的选项有() A: char name[20], *p;p=name;gets(name); B: char name[20], *p;p=name;gets(p); C: char name[20], *p;p=name;scanf("%s",name); D: char name[20], *p;p=name;scanf("%s",p);

    能将字符串存储到name数组中的选项有() A: char name[20], *p;p=name;gets(name); B: char name[20], *p;p=name;gets(p); C: char name[20], *p;p=name;scanf("%s",name); D: char name[20], *p;p=name;scanf("%s",p);

  • 2021-04-14 问题

    【单选题】将person表的person_name字段修改为p_name,数据类型为 char,长度为20,以下命令正确的是______。 A. lter table person change person_name rename p_name char(20); B. alter table person change person_name to p_name char(20); C. alter table person modify person_name p_name char(20); D. alter table person change person_name p_name char(20);

    【单选题】将person表的person_name字段修改为p_name,数据类型为 char,长度为20,以下命令正确的是______。 A. lter table person change person_name rename p_name char(20); B. alter table person change person_name to p_name char(20); C. alter table person modify person_name p_name char(20); D. alter table person change person_name p_name char(20);

  • 2022-06-29 问题

    下列语句错误的是()。 A: char*p=“John”;p[2]=‘a’; B: charname[5]=“John”;name[2]=’a’; C: charname[5]=“John”,*p=name;p[2]=‘a’; D: charname[5]=“John”,*p=&name[1];p[2]=‘a’;

    下列语句错误的是()。 A: char*p=“John”;p[2]=‘a’; B: charname[5]=“John”;name[2]=’a’; C: charname[5]=“John”,*p=name;p[2]=‘a’; D: charname[5]=“John”,*p=&name[1];p[2]=‘a’;

  • 2022-06-04 问题

    When ( ) the phone, state your name and place of business. </p></p>

    When ( ) the phone, state your name and place of business. </p></p>

  • 2022-05-28 问题

    以下属于属性选择器的是()。 A: $("input:name==a") B: $("div[name=’a1’]") C: $("span[name!=’a1’]") D: $("p[name^=’a1’]")

    以下属于属性选择器的是()。 A: $("input:name==a") B: $("div[name=’a1’]") C: $("span[name!=’a1’]") D: $("p[name^=’a1’]")

  • 2021-04-14 问题

    style="padding-left:0px;">class Student:<p style="padding-left:50px;"> name="xxx"<p style="padding-left:50px;"> def show(cls):<p style="padding-left:100px;"> name="yyy"<p style="padding-left:100px;"> print(name,cls.name)<p style="padding-left:0px;">s=Student()<p style="padding-left:0px;">s.show()<p style="padding-left:0px;">结果

    style="padding-left:0px;">class Student:<p style="padding-left:50px;"> name="xxx"<p style="padding-left:50px;"> def show(cls):<p style="padding-left:100px;"> name="yyy"<p style="padding-left:100px;"> print(name,cls.name)<p style="padding-left:0px;">s=Student()<p style="padding-left:0px;">s.show()<p style="padding-left:0px;">结果

  • 2022-06-12 问题

    下列定义中,属于指针数组的是( )? A: char *name[]={"abc","de"}; B: char (*p)[]; C: int (*p)[]; D: int (*name)[];

    下列定义中,属于指针数组的是( )? A: char *name[]={"abc","de"}; B: char (*p)[]; C: int (*p)[]; D: int (*name)[];

  • 2021-04-14 问题

    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:()

  • 2021-04-14 问题

    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>

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