Python input()

更新：2022-07-24 11:11 input()函数有助于接受用户的输入，并以字符串格式返回输出。用户可以输入字符串或数字格式。

input([prompt]) # Where prompt is a string value

输入()参数:

接受单个参数。无论用户键入什么，它都将作为输入参数。

参数	描述	必需/可选
提示	写入标准输出(通常是屏幕)的字符串，不带尾随换行符	可选择的

输入()返回值

input()函数实际上是对输入字符串进行求值，并尝试将其作为 Python 代码运行，输出作为字符串返回。

投入	返回值
线	通过移除尾部换行符来创建字符串
如果电渗流	它会引发 EOFError 异常。

Python 中input()方法的示例

示例 1:输入()在 Python 中是如何工作的？

# get input from user
inputString = input()
print('The inputted string is:', inputString)

输出:

Python is interesting.
The inputted string is: Python is interesting

示例 2:通过提示获取用户输入

# get input from user
inputString = input('Enter a string:')
print('The inputted string is:', inputString)

输出:

Enter a string: Python is interesting.
The inputted string is: Python is interesting

示例 3:输入员工详细信息

# take three values from user
name = input("Enter Employee Name: ")
salary = input("Enter salary: ")
company = input("Enter Company name: ")
# Display all values on screen
print("\n")
print("Printing Employee Details")
print("Name", "Salary", "Company")
print(name, salary, company)

输出:

Enter Employee Name: Jessa
Enter salary: 8000
Enter Company name: Google
Printing Employee Details
Name Salary Company
Jessa 8000 Google

示例 4:计算两个输入整数相加的程序

# convert inout into int
first_number = int(input("Enter first number "))
second_number = int(input("Enter second number "))
print("\n")
print("First Number:", first_number)
print("Second Number:", second_number)
sum1 = first_number + second_number
print("Addition of two number is: ", sum1)

输出:

Enter first number 28
Enter second number 12
First Number: 28
Second Number: 12
Addition of two number is:  40