[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fds6I7nHDxQXZup3vWkkSy7gNIJ224NyaYVPuluLkN6Q":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-10-29 16:03:44",225663435,[8,9,10,11],"Normal U","Nanjing Normal","Normal University","Beijing Normal University",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},47,"4260fd07d01a89fad559093e3f0e0d9a","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd8aa555074287abccfb2f1def5422923.png","python程序设计","work_47494367","第3次作业:第3章 整流电路","以下代码的输出结果是( ) >>>s1="Beijing University" >>>s2=s1[:7]+"Normal"+ s1[-10:] >>>print(s2)",[21,32,41,50,59,68,77,86,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],225663428,[25,26,27,28],"'''python'''","",""p'yth'on"","'py"th"on'","下列关于字符串的表述中,不合法的是哪一项?( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],225663429,[36,37,38,39],"数量34.2,单价23.4","数量,单价34.2","数量34,单价23","数量23,单价34","下列代码的输出结果是哪一项?( ) print("数量{1},单价{0}".format(23.4,34.2))",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],225663430,[45,46,47,48],"a*********","*********a","aaaaaaaaaa","a*(前有9个空格)","下列代码的输出结果是哪一项?( ) print('a'.rjust(10,"*"))",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],225663431,[54,55,56,57],"空字符串可以表示为""(两个双引号)或''(两个单引号)","在Python字符串中,可以混合使用正整数和负整数进行索引和切片","字符串'my\\\\text.dat'中第一个\\表示转义字符","Python字符申采用[N:M]格式进行切片,获取字符申从索引N到M的子字符串(包含N和M)","以下关于Python字符串的描述中,错误的是( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],225663432,[63,64,65,66],"lstrip()","rstrip()","strip()","replace(" ","")","字符串s="hello world",若要将其中的空格去掉,应使用的代码是( )",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],225663433,[72,73,74,75],"一个汉字可以视为长度为1的字符串","字符串以\\0标志字符串的结束","既可以用单引号,也可以用双引号创建字符串","在三引号字符串中可以包含换行回车等特殊字符","下列关于字符串的说法中,错误的是( )",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":31},[],225663434,[81,82,83,84],"isdigit()","endswith()","find()","not in","下列字符串操作的函数或运算符中,运算结果不是布尔型的是( )",{"answer":87,"createTime":5,"id":6,"options":88,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],225663436,[93,94,95,96],"17.55","67.56","12.22","17.56","表达式print("{:.2f}".format(20-2**3+10\u002F3**2*5))的结果是( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],225663437,[102,103,104,105],"print("%8.2f"%3.1415926)","print("%08.2f"%3.1415926)","print("%.2f"%3.1415926)","print("%0.2f"%3.1415926)","要将3.1415926格式化为00003.14,下面代码中正确的是( )"]