defis_positive_integer(value):try:# 尝试将输入值转换为整数number=int(value)# 判断是否为正整数returnnumber>0exceptValueError:# 如果转换失败,说明输入的不是一个有效的整数returnFalse# 主程序user_input=input("请输入一个正整数:")ifis_positive_integer(user_input):print(f"{user_input}是一个正整数。
5.1 代码实现 下面是实现上述功能的Python代码示例: defis_three_digit_positive_integer(num):ifisinstance(num,int)and100<=num<=999:returnTruereturnFalsedefmain():user_input=input("请输入一个三位正整数:")try:number=int(user_input)ifis_three_digit_positive_integer(number):print(f"{number}是一个...
在Python中有三种控制流语句——if、for和while。 if语句 python if 语句用以检查条件:如果条件为真(True),我们将运行一块语句(称作if-block或if 块),否则我们将运行另一块语句(称作else-block或else 块)。其中else从句是可选的。 案例(保存为if.py): number = 23guess= int(input('Enter an integer :'...
print("int main(int argc, char* argv[])")print("{")print(" uint8_t number = atoi(argv[1]); // No problems here") for i in range(2**8):print(" if (number == "+str(i)+")")if i % 2 == 0:print(" p...
Python Program to Check if a Number is Positive, Negative or 0 Before we wrap up, let's put your understanding of this example to the test! Can you solve the following challenge? Challenge: Write a function to check if the entered integer is odd or even. If the given number is odd...
fileno() -> integer "filedescriptor". This is needed for lower-level fileinterfaces, such os.read(). In [8]: f1.fileno() Out[8]: 7 In [56]: f1.readline() #(一次读取一行并返回指针,若使用f1.next()则不会移动指针) Out[56]:'root:x:0:0:root:/root:/bin/bash\n' In [57]:...
Theinputfunction in python is used to take user input. And every data that the user inputs is converted into a string and returned. And a number in python can be an integer or a floating value. user_input =input('Enter a number: ')print(type(user_input)) ...
整数int(integer) 整型 长整型 in py3 已经不区分整型与长整型,统一都叫整型 in C int age 22 , long age 布尔 只有2种状态,分别是 真True 假False 字符串 salary.isdigit() 计算机中, 一切皆为对象 世界万物,皆为对象,一切对象皆可分类 • 符号意义 ...
number = 23 guess = int(input('enter an integer: '))if guess == number:# if 块从这里开始 print('congratulations, you guessed it.')print('but you do not win any prizes!')# if 块从这里结束 elif guess < number:# elif 块从这里开始 print('no,it is a little higher than that.')#...
Original number: 200 Check the said number is a Harshad number or not! True Flowchart: Sample Solution-2: Python Code: deftest(n):if(n>0):t=sum(map(int,str(n)))returnnotn%t n=666print("Original number:",n)print("Check the said number is a Harshad number or not!")print(test...