1、使用Python的built-in函数readlines() 如果要读取整个文件的数据,可以使用Python的built-in函数readlines()。例如: file =open('myfile.txt','r') all_lines=file.readlines() print(all_lines) 以上代码可以打开文件,读取文件中的所有行,将其存储在all_lines列表中,并打印出来。需要注意的是,该方法不适用于...
'''defmain():print("***Read all lines in file using readlines() ***")#Open filefileHandler = open("data.txt","r")#Get list of all lines in filelistOfLines =fileHandler.readlines()#Close filefileHandler.close()#Iterate over the linesforlineinlistOfLines:print(line.strip())print("...
line=file_object1.readline()ifline:print"line=",lineelse: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。"""file_object2= open("test.py",'r')try: lines=file_object2.readlines()print"type(lines)=",type(lines)#ty...
Example: Reading a File 代码语言:javascript 代码运行次数:0 运行 AI代码解释 >>> f = open('C:\myimg.png', 'rb') # opening a binary file>>> content = f.read() # reading all lines>>> content b'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x08\x00\x00\x00\x08\x08\x06...
#write lines to file with proper line-ending fobj = open(fname, 'w') fobj.writelines(['%s%s' %(x,ls) for x in all]) fobj.close() print ('Done') 程序验证: 文本查看器查看: 2.读取文本文件(readtext.py) 程序如下: #read and dislay text file print("read and dislay text file") ...
In the example, we read the contents of the file with readlines. We print the list of the lines and then loop over the list with a for statement. $ ./read_lines.py ['Lost Illusions\n', 'Beatrix\n', 'Honorine\n', 'The firm of Nucingen\n', 'Old Goriot\n', 'Colonel Chabert\...
for line in lines print line 1. 2. 3. 4. 四、一次性读取整个文件内容: AI检测代码解析 file_object = open('thefile.txt') try: all_the_text = file_object.read() finally: file_object.close() 1. 2. 3. 4. 5. 五、区别对待读取文本 和 二进制: ...
f =open("c:\\1.txt","r")lines= f.readlines() #读取全部内容 ,并以列表方式返回forlineinlinesprintline AI代码助手复制代码 4、一次性读取整个文件内容: file_object =open('thefile.txt')try: all_the_text = file_object.read()finally: ...
import csvtotal_len=0lines = csv.reader(open('samples/B1.csv'))next(lines)forn, line in enumerate(lines):total_len +=int(line[1])print(total_len/(n+1))#190.6 这个程序与前一个程序非常相似,不同之处在于使用csv模块允许我...
chunk = file_object.read(100) if not chunk: break do_something_with(chunk) finally: file_object.close( ) #读每行 list_of_all_the_lines = file_object.readlines( ) #如果文件是文本文件,还可以直接遍历文件对象获取每行: for line in file_object: ...