如何根据Python中的值检查多个变量?
给定一些变量,任务是编写一个Python程序来根据一个值检查多个变量。在Python中有三种可能的已知方法来实现这一点:
方法一:使用 or运算符
这非常简单明了。以下代码片段说明了此方法。
示例 1:
Python3
# assigning variables
a = 100
b = 0
c = -1
# checking multiple variables against a value
if a == -1 or b == 100 or c == -1:
print('Value Found!')
else:
print('Not Found!')
Python3
# assigning variables
a = 100
b = 0
c = -1
# checking multiple variables against a value
if a in [100, 0, -1]:
print('Value Found!')
else:
print('Not Found!')
Python3
# assigning variables
a = 90
# checking multiple variables against a value
if a not in [0, -1, 100]:
print('Value Found!')
else:
print('Not Found!')
Python3
# assigning variables
a = 9
b = 9
c = 9
# checking multiple variables against a value
if a == b == c == 9:
print('Value Found!')
else:
print('Not Found!')
输出:
Value Found!
方法#2:使用in关键字
它通常用于搜索序列,但可以很好地替换上面的代码。
蟒蛇3
# assigning variables
a = 100
b = 0
c = -1
# checking multiple variables against a value
if a in [100, 0, -1]:
print('Value Found!')
else:
print('Not Found!')
输出:
Value Found!
您也可以将它用于反语句:
示例 2:
蟒蛇3
# assigning variables
a = 90
# checking multiple variables against a value
if a not in [0, -1, 100]:
print('Value Found!')
else:
print('Not Found!')
输出:
Value Found!
方法 #2:使用 ==运算符
当使用单个值检查时,此方法仅适用于多个变量。
示例 1:
蟒蛇3
# assigning variables
a = 9
b = 9
c = 9
# checking multiple variables against a value
if a == b == c == 9:
print('Value Found!')
else:
print('Not Found!')
输出:
Value Found!