read_all.py #!/usr/bin/python with open('works.txt', 'r') as f: contents = f.read() print(contents) The example reads the whole file and prints its contents. with open('works.txt', 'r') as f: We open the works.txt file in the read mode. Since we did not specify the ...
这是因为read()到达文件末尾时返回了一个空字符串,显示出来就是一个空行。要删除这个空行,可以调用python内置函数rstrip()实现。 rstrip()用于删除字符串末尾的指定字符,默认为空格。 代码示例: with open("test.txt") as file: whole_content=file.read() whole_content=whole_content.rstrip() print(whole_con...
data = file_object.read(chunk_size) if not data: break yield data with open('really_big_file.dat') as f: for piece in read_in_chunks(f): process_data(piece) 另外一种方法是用iter和一个helper function: f = open('really_big_file.dat') def read1k(): return f.read(1024) for pie...
readOutFirst = fhandle.read(); #print "readOutFirst=",readOutFirst; # this line will print ALL file content, here is toooooo much, will make cmd crash, so comment it out print "len(readOutFirst)=",len(readOutFirst) readOutSecond = fhandle.read(); print "readOutSecond=",readOutSec...
all_the_text = open('thefile.txt').read()#文本文件中的所有文本all_the_text = open('thefile.txt','rb').read()#二进制文件中的所有数据 为了安全,最好给打开的文件指定一个名字 例如 file_object = open('thefile.txt')#使用try/finally 语句是为了保证文件对象即使在读取中发生错误也可以被关闭...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 defto_rows(anno):rowdicts=[]try:l=anno.head(1)forlinl:l.replace('"','').replace(";","").split()except AttributeError:raiseException("Invalid attribute string: {l}. If the file is in GFF3 format, use pr.read_gff3 instead.".for...
() -> true or false. True if the file is connected to a tty device."""returnFalsedefnext(self):#real signature unknown; restored from __doc__获取下一行数据,不存在,则报错Python 3.x已经没有改功能"""x.next() -> the next value, or raise StopIteration"""passdefread(self, size=None...
print(f.read().decode("utf-8")) ... 0 554 You can’t pass a bytes object or a string directly to the stdin argument, though. It needs to be something file-like.Note that the 0 that gets returned first is from the call to seek() which returns the new stream position, which in...
it to the console. When the whole file is read, the data will become empty and thebreak statementwill terminate the while loop. This method is also useful in reading a binary file such as images, PDF, word documents, etc. Here is a simple code snippet to make a copy of the file. ...
queryFile = open("D:\\Temp\\myQuery.txt",'r')# Replace with the path to your filequery = queryFile.read() queryFile.close() 处理查询结果 现在可以使用查询结果。 若要循环访问结果,请使用以下命令: Python forresultinresults: print(result)# Prints the whole resultprint(resu...