[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f2V2qLA1_7BssL0KGuaKajj_lhIak8GWRrymOkxmiKKU":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":111,"createTime":26},31549254,"v1","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()‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‫",[8,9,10,11],"变量x表示文件中的一行字符","变量x表示文件中的一个字符","变量x表示文件中的一组字符","变量x表示文件中的全体字符",[],[14,27,37,47,57,67,71,81,91,101],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},31549249,"关于Python文件的 '+' 打开模式,以下选项中描述正确的是",[18,19,20,21],"只读模式","与r\u002Fw\u002Fa\u002Fx一同使用,在原功能基础上增加同时读写功能","追加写模式","覆盖写模式",[],[],0,null,"2023-05-27T10:03:31+08:00",{"id":28,"source":5,"question":29,"options":30,"answer":35,"related":36,"type":24,"origin":25,"createTime":26},31549250,"关于文件的操作,描述错误的是",[31,32,33,34],"fileObject.write() 函数用于打开\u002F创建一个文件","fileObject.readline()方法用于从文件读取整行,包括 \"\\n\" 字符","fileObject.readlines() 方法用于读取所有行(直到结束符 EOF)并返回列表,该列表可以由 Python 的 for... in ... 结构进行处理","fileObject.read()方法用于从文件读取指定的字节数,如果未给定或为负则读取所有",[],[],{"id":38,"source":5,"question":39,"options":40,"answer":45,"related":46,"type":24,"origin":25,"createTime":26},31549251,"以下选项中,不是Python文件处理.seek()方法的参数是‪‪‪‪‪‫‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‫",[41,42,43,44],"-1","0","1","2",[],[],{"id":48,"source":5,"question":49,"options":50,"answer":55,"related":56,"type":24,"origin":25,"createTime":26},31549252,"以下选项中,不是Python中文件操作的相关函数是‪‪‪‪‪‫‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‫‫‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‫",[51,52,53,54],"open()","readlines()","write()","writeline()",[],[],{"id":58,"source":5,"question":59,"options":60,"answer":65,"related":66,"type":24,"origin":25,"createTime":26},31549253,"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",[61,62,63,64],"fo.seek(0)这行代码可以省略,不影响输出效果","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","fo.writelines(ls)将元素全为字符串的ls列表写入文件","执行代码时,从键盘输入\"清明.txt\",则清明.txt被创建",[],[],{"id":4,"source":5,"question":6,"options":68,"answer":69,"related":70,"type":24,"origin":25,"createTime":26},[8,9,10,11],[],[],{"id":72,"source":5,"question":73,"options":74,"answer":79,"related":80,"type":24,"origin":25,"createTime":26},31549255,"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",[75,76,77,78],"列表lines中各元素之间默认采用空格分隔","列表lines中各元素之间默认采用逗号分隔","列表lines中各元素之间无分隔符","列表lines中各元素之间默认采用换行分隔",[],[],{"id":82,"source":5,"question":83,"options":84,"answer":89,"related":90,"type":24,"origin":25,"createTime":26},31549256,"两次调用文件的write方法,以下选项中描述正确的是",[85,86,87,88],"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无分隔符","连续写入的数据之间默认采用换行分隔","连续写入的数据之间默认采用逗号分隔",[],[],{"id":92,"source":5,"question":93,"options":94,"answer":99,"related":100,"type":24,"origin":25,"createTime":26},31549257,"表达式\",\".join(ls)中ls是列表类型,以下选项中对其功能的描述正确的是",[95,96,97,98],"将逗号字符串增加到列表ls中","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","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",[],[],{"id":102,"source":5,"question":103,"options":104,"answer":109,"related":110,"type":24,"origin":25,"createTime":26},31549258,"关于文件关闭的close()方法,哪个选项的描述是正确的",[105,106,107,108],"文件处理结束之后,一定要用close()方法关闭文件","如果文件是只读方式打开,仅在这种情况下可以不用close()方法关闭文件","文件处理后可以不用close()方法关闭文件,程序退出时会默认关闭","文件处理遵循严格的\"打开-操作-关闭\"模式",[],[],{"courseName":112,"courseImg":113,"workName":114,"workId":115,"count":116,"courseId":117},"Python语言程序设计2023年","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb72e75b98e1c83c81dcdc6d077d1767b.jpg","","be61f0a64bcf48358c5ef7f87bfba4b2",15,"d422fa4f24195afb3fcca538720af71c"]