重新梳理Python基础（6）

1. 整理的一些符号（前三个在java和c中是不这样表达的，用&&、||、!表达）
   • and
   • or
   • not
   • != (not equal)
   • == (equal)
   • >= (greater-than-equal)
   • <= (less-than-equal)
   • True
   • False

# _*_ coding:utf-8 _*_
print (True and False), False
print (False and True), False
print (1 == 1 and 2 == 1), False
print ("test" == "test"), True
print (1 == 1 or 2 != 1), True
print (True and 1 == 1), True
print (False and 0 != 0), False
print (True or 1 == 1), True
print ("test" == "testing"), False
print (1 != 0 and 2 == 1), False
print ("test" != "testing"), True
print ("test" == 1), False
print not (True and False), True
print not (1 == 1 and 0 != 1), False
print not (10 == 1 or 1000 == 1000), False
print not (1 != 10 or 3 == 4), False
print not ("testing" == "testing" and "Zed" == "Cool Guy"), True
print not (1 == 1 and not ("testing" == 1 or 1 == 0)), False
print not ("chunky" == "bacon" and not (3 == 4 or 3 == 3)), True
print (3 == 3 and not ("testing" == "testing" or "Python" == "Fun")), False
print "test" and "test" #输出test，布尔操作符and和or会输出操作符两侧的内容，而不是True和False
print "test" or "test"
print not ("test" and "test") 

False False
False False
False False
True True
True True
True True
False False
True True
False False
False False
True True
False False
True True
False False
False False
False False
True True
False False
True True
False False
test
test
False

注意"test" and "test" = "test"，而不是1。or也是如此