?write()方法把字符串str寫入文件。沒(méi)有返回值。由于緩沖，字符串可能不實(shí)際顯示文件，直到flush()或close()方法被調(diào)用。
語(yǔ)法
以下是write()方法的語(yǔ)法：
fileObject.write( str )
參數(shù)
- ??? str -- 這是要被寫入的文件中的字符串。
返回值
此方法不返回任何值。
例子
下面的例子顯示write()方法的使用。
#!/usr/bin/python
# Open a file in write mode
fo = open("foo.txt", "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
# This is 5th line
str = "This is 6th line"
# Write a line at the end of the file.
fo.seek(0, 2)
line = fo.write( str )
# Now read complete file from beginning.
fo.seek(0,0)
for index in range(6):
line = fo.next()
print "Line No %d - %s" % (index, line)
# Close opend file
fo.close()
當(dāng)我們運(yùn)行上面的程序，它會(huì)產(chǎn)生以下結(jié)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
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