運算順序: ()=> not  => and =>or

print(3 != 3)
# print(3 <> 3) #  不等於

print(3 >= 2)

a = 10
b = a # 把a的值  賦值給變量b
c = a
print(b)
print(c)

a = 10
b = 20

a += b  # a = a + b 累加  sum = sum + count   sum += count

print(a) # 30
print(b) # 20

count = 1
while count <= 100:
    print(count)
    # count = count + 1
    count += 1
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a+=b  a = a + b
a *= b   a = a * b
a //= b  a = a // b
...

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and : 並且. 左右兩端同時為真. 結果才能是真
or : 或者. 左右兩端有一個是真. 結果就是真
not : 非. 非真既假, 非假既真 不真-> 假  不假 -> 真
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print(3 > 2 and 4 < 6 and 5 > 7) # False
print(5 < 6 or 7 > 8 or 9 < 6 or 3 > 2)
print(not 5 < 6)

混合運算
運算順序: () => not => and => or  當出現相同的運算的時候 從左往右算
print(3 > 2 or 5 < 7 and 6 > 8 or 7 < 5)  # True

print(3 > 4 or 4 < 3 and 1 == 1)  # False
print(1 < 2 and 3 < 4 or 1 > 2)  # True
print(2 > 1 and 3 < 4 or 4 > 5 and 2 < 1) # True
print(1 > 2 and 3 < 4 or 4 > 5 and 2 > 1 or 9 < 8) # False
print(1 > 1 and 3 < 4 or 4 > 5 and 2 > 1 and 9 > 8 or 7 < 6) # False
print((not 2 > 1 and 3 < 4) or 4 > 5 and 2 > 1 and 9 > 8 or 7 < 6) # False

當出現 x or y的時候, 判斷x是否是0 如果x==0 then y 否則返回x
print(1 or 2) # 1
print(0 or 2) # 2
print(3 or 0) # 3
print(4 or 0) # 4

print(0 or 3 or 0 or 2 or 0 or 5 or 0 or 188)
當出現 x and y 的時候, 和or相反
print(1 and 2) # 2
print(0 and 3) # 0
print(3 and 0) # 0
print(4 and 0) # 0

print(9 and 3 and 4 and 1 and 4 and 8)

print(1 and 2 or 3) # 應付面試

print(1 and 2 > 4)

False 當成0來看
print(False and 1)
print(3 > 5 or 5 < 6 and 7)
print(4 > 5 or 7 and 8 < 6 or 3 and 4)

成員運算
content = input("請輸入你的評論:")
if "馬化騰" in content: # content中是否包含了xxx
    print("你的評論不合法")
else:
    print("你的評論是合法的")

ad = input("請輸入你的廣告:")
if "最" in ad or "第一" in ad or "全球" in ad:
    print("不合法的")

else:
    print("合法的")

print(2**32)
 

運算符 and or not