习题6:字符串和文本

将键入大量的字符串，变量，和格式化字符，并且将它们打印出来

代码如下

# coding: utf-8
__author__ = 'www.py3study.com'
x = "There are {} types of people.".fORMat(10)
binary = 'binary'
do_not = "don't"
y = "Those who know {} and those who {}.".format(binary, do_not)
print(x)
print(y)
print("I said: %r." % x)
print("I also said: '{}'".format(y))
hilarious = False
joke_evaluation = "Isn't that joke so funny ?! %r"
print(joke_evaluation % hilarious)
w = "This is the left side of..."
e = "a string with a right side."
print(w + e)

应该看到的结果

There are 10 types of people.
Those who know binary and those who don't.
I said: 'There are 10 types of people.'.
I also said: 'Those who know binary and those who don't.'
Isn't that joke so funny ?! False
This is the left side of...a string with a right side.

常见问题

%r用来做debug比较好，因为它会显示变量的原始数据(raw data),而其它的符号则是用来向用户显示输出的