Usage of if statement in python

Usage of if statement in python

The following examples are judged by using if...elif...else statement The number is positive, negative or zero:

Recommended: "python tutorial"

Example (Python 3.0)

# Filename : test.py
# author by : www.php.cn
 
# 用户输入数字
 
num = float(input("输入一个数字: "))
if num > 0:
   print("正数")
elif num == 0:
   print("零")
else:
   print("负数")

The output result of executing the above code is :

输入一个数字: 3
正数

We can also use inline if statements to achieve this:

Example (Python 3.0)

# Filename ：test.py
# author by : www.php.cn
 
# 内嵌 if 语句
 
num = float(input("输入一个数字: "))
if num >= 0:
   if num == 0:
       print("零")
   else:
       print("正数")
else:
   print("负数")

The output result of executing the above code is:

输入一个数字: 0
零

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