如果你想读取file。txt

line1 helloworld

import linecache
# read first line
print(linecache.getline('file.txt'), 1)
>helloworld

这应该做到:

f = open('myfile.txt')
first = f.readline()

如果你想读取file。txt

line1 helloworld

import linecache
# read first line
print(linecache.getline('file.txt'), 1)
>helloworld

fline=open("myfile").readline().rstrip()

first_line = next(open(filename))

infile = open('filename.txt', 'r')
firstLine = infile.readline()