2024年3月、6月、9月青少年軟件編程Python等級(jí)考試試卷六級(jí)真題(全3套 含答案)

2024年3月青少年軟件編程Python等級(jí)考試試卷六級(jí)真題（含答案和解析） 一、單選題(2550)以下選項(xiàng)中，創(chuàng)建類正確的是classtest1:defclassdefinit(na,ag):self.na=naclassdefprint(self):classdefinit(classA():definit(self,x):defreturnself.x+self.x6classT():definit(self):def26要將一個(gè)數(shù)組[1,2,3,4,5]繪制成折線圖，代碼是importmatplotlib.pyplotaspltimportnumpyasimportmatplotlib.pyplotaspltimportmatplotlib.pyplotaspltimportmatplotlib.pyplotasplt3*4importnumpyasarr=importnumpyasarr=importnumpyasarr=importnumpyasarr=np.array()生成數(shù)組,np.sum()計(jì)算和,arr%2==0Amatplotlibxyplt.title()plt.set_xlabel()plt.xlabel()plt.xlabel()plt.set_xlabel()plt.set_ylabel()在使用面向?qū)ο蟮姆椒ɡL圖時(shí)，用于設(shè)plt.yticks()xymatplotlibbar()plot()barh()函數(shù)用于繪制水平柱形圖，因此，ABC；scatter()函數(shù)用于繪制散點(diǎn)C。JSON{'name':'Alice','age':25,'city':'New{name:"Alice",age:25,city:"New{"name":"Alice",age:25,city:'New{"name":"Alice","age":25,"city":"NewYork"}試題解析：在JSON中，鍵和字符串值都應(yīng)該使用雙引號(hào)（"）包圍，而不是單引號(hào)（'）。因此，選項(xiàng)A、B、C都不是有效的JSON格式。選項(xiàng)D中的雙引號(hào)使用JSONcsvimportjsonjson_str='{"name":"Alice","age":25,"city":"Newdata=json.loads(json_str){"name":"Alice","age":25,"city":"New{'name':'Alice','age':25,'city':'New[{'name':'Alice','age':25,'city':'New['name':'Alice','age':25,'city':'NewYork']JSONjson.loads()解碼為Pythonimportjsondata="name":"Alice","age":25,"city":"New}text=json.dumps(data)["name":"Alice","age":25,"city":"New{'name':"Alice",'age':25,'city':"New{"name":"Alice","age":25,"city":"New{'name':'Alice','age':25,'city':'NewYork'}Pythonjson.dumps()JSONJSON（JavaScriptObjectNotation）的概念，正確的是試題解析：JSON其簡(jiǎn)潔性和普遍性，JSONtkinterfromtkinterimport*root=Tk()root.title('mywindow')btn1=Button(root,text='fromtkinterimport*root=Tk()root.title()btn1=Button(root,text=btn1.place(x=200,y=50,width=40,height=40)defchangebg(event):#鼠標(biāo)移到按鈕上按鈕變紅event.widget['bg']'red'def#鼠標(biāo)離開按鈕上按鈕變藍(lán)event.widget['bg']=試題解析：btn1.bind('<Enter>',changebgimporttkinterastkimporttkinter.messageboxfromtkinterimport*root=Tk()bt=Button(root)bt['text']defdianji(event):tk.messagebox.showinfo('message','giveflower') giveflower試題解析：bt.bind('<Button-1>',dianji)tkinterfromtkinterimport*root=Tk()e1=Entry(root)fromtkinterimport*root=Tk()e1=Button(root)fromtkinterimport*root=Tk()e1=Label(root,text='123')fromtkinterimport*root=Tk()e1=Checkbutton(root,text='123')試題解析：e1Entry(root)Aimportsqlite3conn=sqlite3.connect('student_info.db')cursor=conn.cursor()cursor.execute('''CREATETABLEIFNOTEXISTSStudent(idINTEGERPRIMARYKEY,nameTEXT,agecursor.execute("INSERTINTOStudent(id,name,age)VALUES(1,'Alice',cursor.execute("INSERTINTOStudent(id,name,age)VALUES(2,'Bob',cursor.execute("INSERTINTOStudent(id,name,age)VALUES(3,'Charlie',cursor.execute("SELECT*FROMStudent")students=cursor.fetchall()forstudentinprint(f"ID:{student[0]},Name:{student[1]},Age:{student[2]}")cursor.execute("UPDATEStudentSETage=23WHEREid=2")cursor.execute("DELETEFROMStudentWHEREid=3")23453id2id=32importsqlite3connection=sqlite3.connect('test.db')cursor=connection.cursor()cursor.execute('''CREATETABLEemployees(idINTEGERPRIMARYKEY,nameTEXT,ageINTEGER,3456B,id,name,age,salarySQLitemydatabase'connection='connection='connection='connectionsqlite3.connect("mydatabase.txt")'importsqlite3connection=sqlite3.connect("students.db")cursor=connection.cursor()cursor.execute("CREATETABLEstudents(nameTEXT,ageINTEGER)")cursor.execute("INSERTINTOstudentsVALUES('John',19)")cursor.execute("INSERTINTOstudentsVALUES('John',18)")cursor.execute("DELETEFROMstudentsWHEREname='John'")cursor.execute("INSERTINTOstudentsVALUES('John',17)")cursor.execute("UPDATEstudentsSETage=22WHEREname='John'")cursor.execute("SELECT*FROMstudents")results=cursor.fetchall()forrowinresults:A.('John',22)B.('John',C.('John',D.('John','John'相關(guān)數(shù)據(jù)時(shí)二條數(shù)據(jù)都被刪除，重新插入'John'22，故22。d:\myfile.txtofficewithopen("./text.txt","r",encoding='utf-8')asf: 91下面程序的輸出結(jié)果是"like"，請(qǐng)?zhí)羁誻ithopen("text.txt","r",encoding='utf-8')asf: A.2,0B.C.D.從當(dāng)前位置開始，20。classF():definit(self,a):defreturn48試題解析：self.a=a+1,f=F(3)=3+1=4,b*b=16二、判斷題(1020)PythonPythonPythonnp.max(a,axis=1)來實(shí)現(xiàn)。（）試題解析：np.maxnumpyimportmatplotlib.pyplotasmonths=["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"]rainfall=[50,40,60,80,100,120,140,130,110,90,70,plt.plot(months,rainfall)JSONJSONscatter（）studentsSETname='Mike'WHEREid=1（）試題解析：UPDATEUPDATESETWHERE條件。with(自動(dòng)管理資源)可以避免無法正常關(guān)閉。三、編程題(330)。classdef①(self,brand,model,size,price):self.brand=brand#品牌self.model= self.size= self.price=price self.power=Falseself.volume=50 self.channel=1defpower_on(self):self.power=defpower_off(self):self.power=Falsedefadjust_volume(self,volume):self.volume=volumedefswitch_channel(self,channel): self.channel=channelclassdefinit(self,brand,model,size,price):super().init(brand,model,size,price)ernet=Falsedefconnect_internet(self): ernet=Truedefdisconnect_internet(self):③defwatch_online(self, print("正在觀看：",url)#創(chuàng)建普通電視和智能電視實(shí)例tv1TV("創(chuàng).維","LCD",55,tv2 ("小.米","OLED",65,電視狀態(tài)：{}，音量：{}，頻道：{}".format(tv1.brand,tv1.model,tv1.size,tv1.price,tv1.power,tv1.volume,tv1.channel))#測(cè)試智能電視的屬性和方法tv2.model,tv2.size,tv2.price,tv2.power,tv2.volume,tv2.channel,classdefinit(self,brand,model,size,price):self.brand=brand self.model=model self.size=size self.price=price self.power=Falseself.volume=50 self.channel=1defpower_on(self):self.power=defpower_off(self):self.power=Falsedefadjust_volume(self,volume):self.volume=volumedefswitch_channel(self,channel): self.channel=channelclassdefinit(self,brand,model,size,super().init(brand,model,size,price)ernet=Falsedefconnect_internet(self): ernet=Truedefdisconnect_internet(self):#關(guān)閉聯(lián)網(wǎng)ernet=Falsedefwatch_online(self,url): ifernet:#判斷是否聯(lián)網(wǎng)print("url)#創(chuàng)建普通電視和智能電視實(shí)例tv1TV("創(chuàng).維","LCD",55,tv2SmartTV("小.米","OLED",65,電視狀態(tài)：{}，音量：{}，頻道：{}".format(tv1.brand,tv1.model,tv1.size,tv1.price,tv1.power,tv1.volume,tv1.channel))#測(cè)試智能電視的屬性和方法tv2.model,tv2.size,tv2.price,tv2.power,tv2.volume,tv2.channel,init或等效答案；（2size或等效答案；（2（3）ernetFalse或等效答案；（2ernet或者ernet==True或等效答案；（2SmartTV或等效答案。(2students；students1studentsimportconn= cursor=conn.cursor() NOTNULL，班級(jí)INTEGER, TEXT(10)NOTNULL, NOTNULL, where=1")cursor.execute("SELECT*FROMstudents")foriin importsqlite3connsqlite3.connect('Studase.db')cursorconn.cursor()studentscursor.execute('''CREATETABLE KEYNOTNULL, INTEGER);''')studentscursor.execute（"INSERTINTOstudentsVALUES('20210267',1,'孫玉潔','cursor.execute("deletefromstudentswhere=1")cursor.execute("SELECT*FROMstudents")foriincursor.fetchall():sqlite3.connect或等效答案；（1CREATETABLE或等效答案；（2 KEY或等效答案；（2INSERTINTOstudentsVALUES或等效答案；（2deletefromstudents或等效答案；（2cursor.fetchall():或等效答案。（1個(gè)一行（元素之間以空格分隔）寫入一個(gè)文本文件（"record.txt"）注：enumerate()取出的兩個(gè)值，一個(gè)為數(shù)的索引，一個(gè)為數(shù)的值。fromrandomimportrandintlis=[]foriinrange(100):withopen("record.txt"," ")asf:str=""fori,vinstr=str+"{}".format(v) ==b= (str+"\n")str=""lis_date=[withopen("record.txt")asforlinein line=line.strip()data=line.split()forvindata:last_date= fromrandomimportrandintlis=[]foriinrange(100):withopen("record.txt","w")asf:str=""fori,vinstr=str+"{}".format(v)if(i+1)%10==0:b=f.write(str+"\n")str=""lis_date=[withopen("record.txt")asf:forlineinline=line.strip()data=line.split()forvindata:last_date=sorted(lis_date)（1）w；（2（2）(i1)%10或等效答案；（2（3）f.write；（2（4）f.readlines()；（2（5）sorted（22024年6月青少年軟件編程Python等級(jí)考試試卷六級(jí)真題（含答案） 一、單選題(2550)運(yùn)行下面代碼的正確結(jié)果是（）withopen("example.txt","a")asfile:file.write("Iseeyou.")Thisisanexample.ThisisanIseeThisisanexample.IseeIseeyou.Thisisanexample.Python（）write(create(new(open()filename="example.txt"line_count=0withopen(filename,"r")asfile:forlineinfile:line_count+=print(f"Thefile'example'has{line_count}lines.")example.txtMyFavoriteOnceuponatime,IhadapetdognamedMax.MaxwasthemostobedientdogIknew.Weplayedfetchinthepark,wentonlongwalksinthewoods,andeventooknapstogetheronlazyafternoons.4321運(yùn)行下面代碼的正確結(jié)果是（）withopen("myfile.txt","w")asout_file:out_file.write("ThisismyfirstPythonprogram.")withopen("myfile.txt","r")asin_file:myfile=in_file.read()myfile.txtHelloHelloThisismyfirstPythonHelloThisismyfirstPythonHelloWorld!ThisismyfirstPythonprogram.編寫程序繪制如下圖所示的直線，程序空白處應(yīng)填（）importmatplotlib.pyplotaspimportnumpyasnpx=np.array([0,1,2, 1234（）importmatplotlib.pyplotaspimportnumpyasnpx=importmatplotlib.pyplotaspimportnumpyasnpx=np.array([3,4,3, 1234在命令行窗口分別運(yùn)行以下代碼，輸出結(jié)果是（）>>>importnumpyasA.array(['6','6','6','6','6',B.array([6,6,6,6,6,C.6,6,6,6,6,D.'6','6','6','6','6',2456importmatplotlib.pyplotaspimportnumpyasnpimportjsona='{"name":"age":30,"city":SQLite（）B.C.D.CREATTABLEUsers(id,name,password,role)idPRIMARYNOTnamepasswordNOTimportsqlite3conn=sqlite3.connect('./mydb.sqlite')cur=conn.cursor()sql'''INSERTINTOUsers(name,password,role)VALUEScur.execute(sql,('admin','123456','connsqlite3.connect('./mydb.sqlite')，mydb.sqlitecur=conn.cursor()，sql'''INSERTINTOUsers(name,password,role)VALUESdp=[[0foriinrange(n)]forjinrange(m)]dp.insert(-1,[nforiinrange(n)])dp[len(dp)-importrandomforiinrange(1,6):iftmp%2==0ori%2==1:A.B.C.D.importcsvnext(file1)foriinfile1: importsqlite3conn=sqlite3.connect('mydatabase.db')c=conn.cursor()c.execute("SELECT*FROMusersWHEREage>?",(30,))results=c.fetchall()forrowinresults:303030classPerson():definit(self,name,age):=nameself.age=agedefintroduce(self):returnf"Mynameis{}andIam{self.age}yearsold."p=Person("Alice",30)MynameisAliceandIam30yearsMynameisPersonandIam30yearsMynameisAliceandIam0yearsMynameis30andIamAliceyearsold.classMyClass():definit(self):self.x=10self.y=20defadd(self):returnself.x*self.yobj=MyClass()A.B.C.D.classParent():defreturn"Parent'smethod1"classChild(Parent):defreturn"Child'smethod1"defmethod2(self):returnsuper().method1()c=Child()Parent'smethod1Parent'smethod1Child'smethod1Child'smethod1Child'smethod1Parent'smethod1Parent'smethod1Child'smethod1classJdage():definit(self,name,age):=nameself.age=agedefifself.age<18:my_stu=Jdage("Peter",26)my_stuJdage程序代碼執(zhí)行后的結(jié)果為“Peterdefjd(self)jd息表示游戲開始。如何綁定一個(gè)函數(shù)到按鈕點(diǎn)擊事件，以便在點(diǎn)擊時(shí)執(zhí)行（）button=Button(root,text="開始游戲",button=Button(root,text="開始游戲",button=Button(root,text="開始游戲",buttonButton(root,text="event=startGame)window=root=app=frameFrame()word=Word(root,text='text=Text(root,value='message=Message(root,text='labelLabel(root,text='書名')局管理器最適合實(shí)現(xiàn)這個(gè)需求（）二、判斷題(1020)Pythonwith（）下面代碼的輸出結(jié)果是：HelloWorld!（）。file=open("exam.txt")exam.txt：HelloWorld!json.dumps()PythonJSON（）。classMyClass():defmy_method(self,other_arg):print(self,other_arg)obj=MyClass()classA():definit(self):self.value=classdefinit(self):super().init()self.value+=5b=importmatplotlib.pyplotaspltimportnumpyasx=np.linspace(0,10,100)y1=np.sin(x)y2=plt.plot(x,y1,plt.plot(x,y2,label='cos(x)')Button三、編程題(330)sport_240622.csv40（40）人群的平均運(yùn)動(dòng)時(shí)長(zhǎng)（2）importwithopen("/data/sport_240622.csv")asf:rows=list( forrowin importwithopen("/data/sport_240622.csv")asf:rows=list(csv.reader(f))forrowinPythonsqlite3students（主鍵），name（學(xué)生的名字），age（學(xué)生的年齡），grade（學(xué)生的年級(jí)students_table518將名字為"Alice"1刪除名字為"Bob"importsqlite3conn=sqlite3.connect(' cursor=conn.cursor() KEYAUTOINCREMENT,nameTEXT,ageINTEGER,gradeTEXT)''')students=[('Alice',17,'10th'),('Bob',18,'11th'),('Charlie', ('David',19,'12th'),('Eve',17,cursor.executemany('''INSERTINTOstudents_table(name,age,grade)VALUES(?,?,?)''',students)cursor.execute('SELECT*FROMstudents_table print(18 cursor.execute('UPDATEstudents_tableSETage=age+1WHEREname=cursor.execute('DELETEFROMstudents_tableWHEREname="Bob"')importsqlite3conn=sqlite3.connect('students.db')cursor=conn.cursor()cursor.execute('''CREATETABLEstudents_table(idINTEGERPRIMARYKEYAUTOINCREMENT,nameTEXT,ageINTEGER,gradeTEXT)''')students=[('Alice',17,'10th'),('Bob',18,'11th'),('Charlie','10th'),('David',19,'12th'),('Eve',17,cursor.executemany('''INSERTINTOstudents_table(name,age,grade)VALUES(?,?,?)''',students)cursor.execute('SELECT*FROMstudents_tableWHEREage18')print(18cursor.execute('UPDATEstudents_tableSETage=age+1WHEREname=cursor.execute('DELETEFROMstudents_tableWHEREname="Bob"')BMI18.523.9classBoy():definit(self,tizhong,shengao):defreturn ifprint("BMI:%d偏瘦。"%c.bmi())elif print("BMI:%dprint("BMI:%dc.bmi())classdefinit(self,tizhong,shengao):self.tizhong=tizhongself.shengao=shengaodefreturnself.tizhong(self.shengao**2)a=int(input('輸入體重（kg）：'))b=float(input('輸入身高（cm）：'))/100 #將身高從厘米轉(zhuǎn)換為米c=Boy(a,b)ifc.bmi()<print("BMI:%.2fc.bmi())elifc.bmi()>23.9:print("BMI:%.2fc.bmi())print("BMI:%.2f2024年9月青少年軟件編程Python等級(jí)考試六級(jí)真題(含答案一、單選題（共25題，共50分）下面代碼運(yùn)行后出現(xiàn)的圖像是？（）importmatplotlib.pyplotaspltimportnumpyasnpx=np.array(['A','B','C',y=np.array([30,25,15,35])plt.bar(x,y)下面代碼的輸出結(jié)果正確的是？（）。importnumpyasnpdt=np.dtype('i1')下面代碼的輸出結(jié)果正確的是？（）。importnumpyasnpa=np.array([1,2,3],dtype=float)print(a)下面代碼的輸出結(jié)果正確的是？（）。importnumpyasnpstudent=np.dtype([('name','S20'),('age','i2'),('height','f4')])a=np.array([('Alice',20,55),('Jone',21,48)],dtype=student)SQLite，說法錯(cuò)誤的是？（）SQLitePRIMARYKEYconn=sqlite3.connect('d:/test.db')SQLmit()SQLitePythonimportsqlite3SQLite，說法錯(cuò)誤的是？（）SQLliteExpertSQLite，正確的導(dǎo)入語句是？（）importimportimportimportSQLiteSQLite？（）有一個(gè)文件記錄了100020個(gè)字節(jié)，要想只讀取最后10行的內(nèi)容，不能直接用到的函數(shù)是？（）。以下選項(xiàng)中不是對(duì)文件的寫操作方法的是？（）以下語句的執(zhí)行結(jié)果是？（）。withopen('A.txt','w+')asf:輸出一個(gè)'hello'A.txt'hello'A.txt'hello'字符串并輸出一個(gè)'hello'如下選項(xiàng)中，對(duì)文件的描述錯(cuò)誤的是？（）JSON？（）JSON('Alice','90')，請(qǐng)補(bǔ)全下面的代碼？（）withopen('scores.txt','r')asf:forlineinf:#將每一行的數(shù)據(jù)格式化為一個(gè)元組。score=tuple( 從一個(gè)json文件中讀取一些數(shù)據(jù)，并將其轉(zhuǎn)換為Python的字典對(duì)象。可以使用json模塊中的load方法來實(shí)現(xiàn)這個(gè)功能。請(qǐng)問，下面哪個(gè)選項(xiàng)是正確的代data.jsondata？（）。data=data=data=dataopen('data.json').loads(json)有如下程序段，執(zhí)行程序后輸出的值是？（）a=[[0]*3foriinrange(4)]foriinrange(len(a)):forjinrange(3):1072Python？（）PythonclassselfselfinitPython？（）以下代碼中，哪個(gè)選項(xiàng)可以正確地創(chuàng)建一個(gè)類和其實(shí)例？（）。如下程序，執(zhí)行程序后，打印的結(jié)果是？（）classCars():definit(self,color,shape):self.color=colorself.shape=shapenew_car=Cars('紅色','小汽車')運(yùn)行以下代碼，當(dāng)用戶點(diǎn)擊按鈕時(shí)，程序?qū)⑤敵觯浚ǎ﹊mporttkinterastkdefprint("Buttonclicked!")root=tk.Tk()button=tk.Button(root,text="Clickme!",command=click)"Button"Click閱讀以下代碼，程序運(yùn)行后，列表框中將顯示哪些項(xiàng)？（）importtkinterastkroot=listbox=tk.Listbox(root)listbox.insert(tk.END,"Apple")listbox.insert(tk.END,僅僅"Apple"和下列代碼創(chuàng)建了一個(gè)按鈕，當(dāng)按鈕被點(diǎn)擊時(shí)，會(huì)發(fā)生什么？（）。importtkinterastkdefon_button_click():print("Buttonclicked!")root=button=tk.Button(root,text="Clickme!",command=on_button_click)彈出對(duì)話框顯示"Button在控制臺(tái)輸出"Button窗口標(biāo)題變?yōu)?Button運(yùn)行以下代碼，當(dāng)點(diǎn)擊“Changetext”按鈕后，標(biāo)簽的文本會(huì)變成？（）importtkinterastkdefchange_text():label.config(text="Changedtext")root=label=tk.Label(root,text="Originaltext")button=tk.Button(root,text="Changetext",command=change_text)"Changed"Button"Originaltext"arrNumPy(3,2)。如果將這個(gè)數(shù)組轉(zhuǎn)換為形狀(2,3)，返回一個(gè)新數(shù)組，以下哪個(gè)函數(shù)調(diào)用是正確的？（）。arr.reshape(2,arr.resize(3,arr.resize(2,二、判斷題（共10題，共20分） 。（）。importnumpyasnpa=b=a.reshape(3,1)print(b)NumPynp.sum(（SQLiteSQL（）。fi=open("t.txt","r+")執(zhí)行后只能對(duì)"t.txt"文件進(jìn)行讀操作。（）。以只讀模式打開文件時(shí)，文件指針指向文件開始處。（）。在類定義的外部沒有任何辦法可以訪問對(duì)象的私有成員。（）。np.reshape()（）json.dump()函數(shù)。（）。和修改器（setter）來控制對(duì)對(duì)象的訪問和修改。（）。“MyWindow”的窗口。（）importtkin