python代码过长的换行方法

python代码换行就是每行后面加个 \

举个栗子：

time = "2017"
print "one" + "," \
+ "two" \
+ ",three" + \
"," + time

打印出来就是：

one,two,three,2017

再举一个栗子：

print "this line is toooooooooooo \
long"

打印出来：

this line is toooooooooooo long