writelines()方法讀取字串的序列到檔。該序列可以是一個迭代對象生產的字串，通常是字串列表。這個函數沒有返回值。
語法
下麵是 writelines()方法的語法 -
fileObject.writelines( sequence )
參數
-
sequence -- 這是字串的序列。
返回值
此方法不返回任何值。
示例
下麵的例子顯示 writelines()方法的使用。
Assuming that 'foo.txt' file contains following text: This is 1st line This is 2nd line This is 3rd line This is 4th line This is 5th line
#!/usr/bin/python3
# Open a file in read/write mode
fo = open("abc.txt", "r+")
print ("Name of the file: ", fo.name)
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 = next(fo)
print ("Line No %d - %s" % (index, line))
# Close opened file
fo.close()
當我們運行上面的程式，會產生以下結果 -
Name of the file: foo.txt 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
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