[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fUv2j9z57z7COrgMtpz0xtj_xveDBkG_uuhLK0rP-9VM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2024-06-17 23:40:40",152658295,[8,9,10,11],"当文件以文本方式打开时,读写按照字节流方式","Python能够以文本和二进制两种方式处理文件","Python通过解释器内置的open()函数打开一个文件","文件使用结束后要用close()方法关闭,释放文件的使用授权",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},25,"6e333755e6b9a1c369c8bd6bccbd82b5","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","计算机程序设计(Python)Ⅱ(23)","work_35698747","第8-11章单元测试(23级)","关于Python对文件的处理,以下选项中描述错误的是",[21,26,36,45,54,63,72,81,90,99],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":28,"id":29,"options":30,"question":35,"source":24,"type":25},[],"2024-06-17 23:40:41",152658297,[31,32,33,34],"read","readline","readtext","readlines","以下选项中,不是Python对文件的读操作方法的是",{"answer":37,"createTime":28,"id":38,"options":39,"question":44,"source":24,"type":25},[],152658299,[40,41,42,43],"与r\u002Fw\u002Fa\u002Fx一同使用,在原功能基础上增加同时读写功能","读模式","追加写模式","覆盖写模式","关于Python文件的 '+' 打开模式,以下选项中描述正确的是",{"answer":46,"createTime":28,"id":47,"options":48,"question":53,"source":24,"type":25},[],152658300,[49,50,51,52],"文件名不能是一个目录","文件名对应的文件可以不存在,打开时不会报错","文件名可以是相对路径","文件名可以是绝对路径","关于open()函数的文件名,以下选项中描述错误的是",{"answer":55,"createTime":28,"id":56,"options":57,"question":62,"source":24,"type":25},[],152658302,[58,59,60,61],"连续写入的数据之间默认采用逗号分隔","连续写入的数据之间无分隔符","连续写入的数据之间默认采用空格分隔","连续写入的数据之间默认采用换行分隔","两次调用文件的write方法,以下选项中描述正确的是",{"answer":64,"createTime":28,"id":65,"options":66,"question":71,"source":24,"type":25},[],152658304,[67,68,69,70],"列表lines中各元素之间无分隔符","列表lines中各元素之间默认采用逗号分隔","列表lines中各元素之间默认采用换行分隔","列表lines中各元素之间默认采用空格分隔","表达式writelines(lines)能够将一个元素是字符串的列表lines写入文件,以下选项中描述正确的是",{"answer":73,"createTime":28,"id":74,"options":75,"question":80,"source":24,"type":25},[],152658306,[76,77,78,79],"文件只能选择二进制或文本方式打开","所有文件都可能以文本方式打开","文本文件只能以文本方式打开","所有文件都可能以二进制方式打开","关于文件的打开方式,以下选项中描述正确的是",{"answer":82,"createTime":28,"id":83,"options":84,"question":89,"source":24,"type":25},[],152658308,[85,86,87,88],"文件不存在则创建文件","一定会报错","根据打开类型不同,可能不报错","不存在文件无法被打开","当打开一个不存在的文件时,以下选项中描述正确的是",{"answer":91,"createTime":28,"id":92,"options":93,"question":98,"source":24,"type":25},[],152658310,[94,95,96,97],"fo.seek(0)这行代码可以省略,不影响输出效果","fo.writelines(ls)将元素全为字符串的ls列表写入文件","代码主要功能为向文件写入一个列表类型,并打印输出结果","执行代码时,从键盘输入"清明.txt",则清明.txt被创建","执行如下代码:‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‫‪ fname = input("请输入要写入的文件: ") fo = open(fname, "w+") ls = ["清明时节雨纷纷,","路上行人欲断魂,","借问酒家何处有?","牧童遥指杏花村."] fo.writelines(ls) fo.seek(0) for line in fo: print(line) fo.close() 以下选项中描述错误的是",{"answer":100,"createTime":28,"id":101,"options":102,"question":107,"source":24,"type":25},[],152658312,[103,104,105,106],"变量x表示文件中的一个字符","变量x表示文件中的全体字符","变量x表示文件中的一行字符","变量x表示文件中的一组字符","‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‫‪关于下面代码中的变量x,以下选项中描述正确的是‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‫‪ fo = open(fname, "r") for x in fo: print(x) fo.close()"]