[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fFPItKD0pQKnYcAR71o6J7ZRcI19Vr8cSMELG_6fGljo":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2024-03-31 23:06:21",136470573,[8,9,10,11],"str.replace(x,y)方法把字符串str中所有的x子串都替换成y","str.upper()把字符串str所有的字符都大写","str.len()取得字符串str的长度","x='OK',则3*x和x*3这两个表达式的执行结果都是'OKOKOK'",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},39,"dcf5577af6b5669310292edf6e9fc321","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4275f5a11f0e69bd4297c89abf515a92.jpg","Python语言程序设计基础","work_33481226","作业3-3基本数据类型","以下关于字符串类型的操作,描述错误的是( )",[21,26,35,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],136470574,[30,31,32,33],"str[0].upper()+str[1:]","str[1].upper()+str[-1:1]","str[0].upper()+str[1:-1]","str[1].upper()+str[2:]","想把字符串的第一个字母大写,其他字符小写,正确的选项是( )",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],136470575,[39,40,41,42],"字符串是字符的序列,可以按照单个字符索引或者字符片段进行切片","字符串包括两种序号体系:正向递增和反向递减","字符串提供切片访问方式,采用[N:M]表示字符串中从N到M(包含M)的子字符串","字符串可以用一对单引号或双引号或三引号括起来,可以包含0到多个字符","以下关于python字符串的描述中,错误的是( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],136470576,[48,49,50,51],"helloworld","hello world","&quot;hello&quot;+st","报错","执行下列语句后的显示结果是什么?st=&quot;world&quot;print(&quot;hello&quot;+st)",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],136470577,[57,58,59,60],"&lt;class 'int'&gt;","&lt;class 'float'&gt;","&lt;class 'bool'&gt;","&lt;class 'str'&gt;","函数type(1+0xF*3.14)的返回结果是",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],136470578,[66,67,68,69],"7","6","5","4","若字符串s='a\\nb\\tc',则len(s)的值是",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":24,"type":25},[],136470579,[75,76,77,78],"圆括号()","方括号[]","花括号{}","尖括号&lt;&gt;","Python表达式中,可以使用( )来改变运算的优先顺序",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":24,"type":25},[],136470580,[84,85,86,87],"4\u002F\u002F3","15%2","5\u002F4","2**0","下列表达式中,值不是1的是( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":24,"type":25},[],136470581,[93,94,95,96],"(x%10)*10+x%10","(x\u002F10)%10+x\u002F\u002F10","(x%10)\u002F\u002F10+x\u002F\u002F10","(x%10)*10+x\u002F\u002F10","x为一个两位数的正整数,要将其个位数和十位数交换,正确的表达式是( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":24,"type":25},[],136470582,[102,103,104,105],"#将整数k转换成实数float(k)","#取实数x的整数部分int(x)","#求正整数m的百位上的数字m[-3]","#求正整数n的个位上的数字n%10","以下代码不能准确实现说明的功能的是( )"]