f.write to solve python writing Chinese error

1 example of an error

#coding:utf-8
s = u' Chinese '
f = open("test.txt","w")
f.write(s)
f.close()

The reason is that the encoding method is wrong, should be changed to utf-8 encoding

Solution 1:

#coding:utf-8
s = u' Chinese '
f = open("test.txt","w")
f.write(s.encode("utf-8"))
f.close()

Solution 2:

#coding:utf-8
import sys

reload(sys)
sys.setdefaultencoding('utf-8') 

s = u' Chinese '
f = open("test.txt","w")
f.write(s)
f.close()