try: text_lines = file.readlines() print(type(text_lines), text_lines) for line in text_lines: print(type(line), line) finally: file.close() """ <class 'list'> ['吴迪 177 70 13888888\n', '王思 170 50 13988888\n', '白雪 167 48 13324434\n', '黄蓉 166 46 13828382'] <class...
f =open("a.txt") lines = f.readlines()print(type(lines))forlineinlines:printline, f.close()#Python学习交流群:711312441 输出结果: <type'list'> Hello Welcome Whatisthe fuck... 四、linecache模块 当然,有特殊需求还可以用linecache模块,比如你要输出某个文件的第n行: # 输出第2行text = linecache...
file=open('text.txt','w')content=['hello world 1\n','hello world 2']file.writelines(content)file.close() 使用with…as…语句处理文件 其实一种更好(更优雅)的方式是使用with…as…的语句来处理文件,这样你不必再写close的代码手动关闭文件,它会在使用完毕后自动为你清理文件所占用的内存,只要将open...
try: all_the_text = file_object.read() #结果为str类型 print type(all_the_text) print "all_the_text=",all_the_text finally: file_object.close() """ 关于readline()方法: 1、readline()每次读取一行,比readlines()慢得多 2、readline()返回的是一个字符串对象,保存当前行的内容 """ def py...
file=open('test.txt','r')try:text_lines=file.readlines()print(type(text_lines),text_lines)#<class'list'>['text\n','text\n','text\n',...]forlineintext_lines:print(type(line),line)#<class'str'>'text\n'finally:file.close()...
file_object1=open("test.py",'r')try:whileTrue:line=file_object1.readline()ifline:print("line=",line)else:breakfinally:file_object1.close()"""关于readlines()方法:1、一次性读取整个文件。2、自动将文件内容分析成一个行的列表。"""
python read_txt 会显示空行吗 python中readtext的用法 读取文件 # 'r'表示是str形式读文件,'rb'是二进制形式读文件。(这个mode参数默认值就是r) with open("text.txt",'r',encoding="utf-8") as f: # python文件对象提供了三个"读"方法: read()、readline() 和 readlines()。
python的read、readline、redalines都是读取文件的方法,下面以具体案例讲解它们之间的区别: 首先给出一个要读取的文件: python is very good java is very good c++ is very good 使用read读取文件,会返回整个文件的内容,结果如图所示, f = open("保存字符串.txt","r")#返回一个文件对象 ...
Python read text with readlines Thereadlinesfunction reads and returns a list of lines from the stream. main.py #!/usr/bin/python with open('words.txt', 'r') as f: lines = f.readlines() print(lines) for line in lines: print(line.strip()) ...
/usr/bin/python with open('works.txt', 'r') as f: lines = f.readlines() print(lines) for line in lines: print(line.strip()) In the example, we read the contents of the file withreadlines. We print the list of the lines and then loop over the list with a for statement....