python中writelines的⽤法_详解详解Python中writelines（）⽅
法的使⽤
writelines()⽅法写⼊字符串序列到⽂件。该序列可以是任何可迭代的对象产⽣字符串，字符串为⼀般列表。没有返回值。
语法
以下是writelines()⽅法的语法：
fileObject.writelines( sequence )
参数
sequence -- 这是字符串的序列。
返回值
此⽅法不返回任何值。
例⼦
下⾯的例⼦显⽰writelines()⽅法的使⽤。
#!/usr/bin/python‘
# Open a file in witre mode
fo = open("", "rw+")
print "Name of the file: ", fo.name
# Assuming file has following 5 lines
# This is 1st line
# This is 2nd line
# This is 3rd line
# This is 4th line
writelines()方法将什么写入文件
# This is 5th line
seq = ["This is 6th line\n", "This is 7th line"]
# Write sequence of lines at the end of the file.
fo.seek(0, 2)
line = fo.writelines( seq )
# Now read complete file from beginning.
fo.seek(0,0)
for index in range(7):
line = fo.next()
print "Line No %d - %s" % (index, line)
# Close opend file
fo.close()
当我们运⾏上⾯的程序，它会产⽣以下结果：Name of the file:
Line No 0 - This is 1st line
Line No 1 - This is 2nd line
Line No 2 - This is 3rd line
Line No 3 - This is 4th line
Line No 4 - This is 5th line
Line No 5 - This is 6th line
Line No 6 - This is 7th line

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。