Write a Python program to check if a number is positive, negative or zero. Positive Numbers: Any number above zero is known as a positive number. Positive numbers are written without any sign or a '+' sign in front of them and they are counted up from zero, i.e. 1, + 2, 3, +...
ifis_positive:print("输入的数值为正数!")else:print("输入的数值不是正数!") 1. 2. 3. 4. 3. 代码实例 # 提示用户输入一个数值num=float(input("请输入一个数值:"))# 判断该数值是否为正数ifnum>0:is_positive=Trueelse:is_positive=False# 输出结果ifis_positive:print("输入的数值为正数!")else...
def check_number(number): if number > 0: return "Positive" elif number == 0: return "Zero" return "Negative" print(check_number(1)) # Positive ▍38、使用sorted()检查2个字符串是否为相同 def check_if_anagram(first_word, second_word): first_word = first_word.lower() second_word = s...
下面是一个更复杂的示例,演示如何判断用户输入的值是否为固定内容,并根据不同的情况执行不同的代码块: user_input=input("Please enter a number: ")ifuser_input.isdigit():number=int(user_input)ifnumber==0:print("You entered zero")elifnumber>0:print("You entered a positive number")else:print("Y...
if n % i == 0: return False return True This method efficiently determines if a number is prime or not. MY LATEST VIDEOS Table of Contents What is a Prime Number? A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. For example, ...
is\b)', text) print("肯定预搜索断言:", positive_result) # 输出匹配到的单词列表 print("否...
Python has a neat “elif” keyword for if-else-if control structures, for example: XML Copy if n < 0: print "n is negative" elif n == 0: print "n equals zero" else: print "n is positive" Next, the demo solves the system of equations using matrix multiplication via the NumPy...
Float, or "floating point number" is a number, positive or negative, containing one or more decimals. Example Floats: x =1.10 y =1.0 z = -35.59 print(type(x)) print(type(y)) print(type(z)) Try it Yourself » Float can also be scientific numbers with an "e" to indicate the ...
#1. find the positive divisors#2. calculate the sum#3. perfect or notdef perfect_number(num):divisors= []for i in range(1,num):if num%i==0:divisors.append(i)if sum(divisors)==num:return Trueelse:return False# test case 1perfect_number(2) ...
Write a Python function to check whether a number is "Perfect" or not.According to Wikipedia : In number theory, a perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself (also ...