[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3m1TxNbhG6zEqCxJikJZsTyQiAXZBP_09flBCrSf_7E":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2024-01-04 10:32:20",100825878,[8,9,10,11],"将列表所有元素连接成一个字符串,元素之间增加一个逗号","将逗号字符串增加到列表ls中","在列表ls每个元素后增加一个逗号","将列表所有元素连接成一个字符串,每个元素后增加一个逗号",{"courseId":13,"courseImg":14,"courseName":15},"7d99f799edc6a26901fe850015526167","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F90b280d6fd61bd33437dbdc2cd233969.png","Python程序设计","表达式",".join(ls)中ls是元素全为字符串的列表,以下选项中对其功能的描述正确的是",[18,29,39,49,58,68,77,86,89,98],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],100825860,[22,23,24,25],""h2ll4, w4rld!"",""hello, world!"",""h4ll4, w4rld!"",""h2llo, w4rld!"","s = "hello, world!" table = str.maketrans("aeiou", "12345") result = s.translate(table) print(result) 上述代码输出什么","v1",0,{"answer":30,"createTime":31,"id":32,"options":33,"question":38,"source":27,"type":28},[],"2024-01-04 12:32:49",100825862,[34,35,36,37],"在三引号字符串中可以包含换行回车等特殊字符","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","字符应该视为长度为1的字符串","关于字符串下列说法错误的是 ( )",{"answer":40,"createTime":41,"id":42,"options":43,"question":48,"source":27,"type":28},[],"2024-01-04 12:32:50",100825865,[44,45,46,47],"2","10","3","11","s = "hello, world!" result = s.find("l") print(result) 上述代码输出什么",{"answer":50,"createTime":31,"id":51,"options":52,"question":57,"source":27,"type":28},[],100825867,[53,54,55,56],"\\\\","#","*","\\*……*\\","Python程序中注释使用的符号是( )",{"answer":59,"createTime":60,"id":61,"options":62,"question":67,"source":27,"type":28},[],"2024-01-04 12:32:48",100825871,[63,64,65,66],"2.72 3.142","3.14 2.72","3.142 2.72","2.718 3.14","print("{1:.3f} {0:.2f}".format(3.1415926, 2.718)) 输出什么",{"answer":69,"createTime":31,"id":70,"options":71,"question":76,"source":27,"type":28},[],100825873,[72,73,74,75],"序列s的字节数量","序列s的字符个数","序列s中出现x的总次数","序列s中'x'字符的个数","假设s表示某个序列类型数据,则"s.count(x)"的含义是( )",{"answer":78,"createTime":60,"id":79,"options":80,"question":85,"source":27,"type":28},[],100825876,[81,82,83,84],"'欢迎同学们'","'欢迎同学们3'","'欢迎同学们*3'","'欢迎同学们欢迎同学们欢迎同学们'","表达式:'欢迎同学们'*3 的运算结果是( )",{"answer":87,"createTime":5,"id":6,"options":88,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":90,"createTime":60,"id":91,"options":92,"question":97,"source":27,"type":28},[],100825881,[93,94,95,96],"注释","缩进标记","字符串标注","续行符","Python程序中语句的最后若有反斜杠()是何意",{"answer":99,"createTime":41,"id":100,"options":101,"question":106,"source":27,"type":28},[],100825883,[102,103,104,105],"2016-09-16T22:33:32.000007","2016-09-16T22:33:32.7","42629.9399537037","系统出错","以下程序的输出结果是: from datetime import datetime s= datetime(2016,9,16,22,33,32,7) print(s.isoformat())"]