python函數(shù)示例

Python input()函數(shù) (Python input() function)

input() function is a library function, it is used to get the user input, it shows given message on the console and wait for the input and returns input value in string format.

input()函數(shù)是一個(gè)庫函數(shù)，用于獲取用戶輸入，它在控制臺(tái)上顯示給定的消息并等待輸入，并以字符串格式返回輸入值。

Syntax:

句法：

input(prompt)

Parameter(s): promot – a string value/message that will display on the console.

參數(shù)： promot –將在控制臺(tái)上顯示的字符串值/消息。

Return value: str – it returns user input in string format.

返回值： str –以字符串格式返回用戶輸入。

Example:

例：

Input:text = input("Input any text: ")# if user input is "Hello world!"print("The value is: ", text)Output:Input any text: Hello world!

Example 1: Input a string and print it and its type

示例1：輸入一個(gè)字符串并打印它及其類型

# python code to demonstrate example # of input() function# user input text = input("Input any text: ")# printing value print("The value is: ", text)# printing type print("return type is: ", type(text))

Output

輸出量

Input any text: Hello world! The value is: Hello world! return type is: <class 'str'>

Example 2: Input different of types of values and print them along with their types

示例2：輸入不同類型的值，并將其與它們的類型一起打印

# python code to demonstrate example # of input() function# input 1 input1 = input("Enter input 1: ") print("type of input1 : ", type(input1)) print("value of input1: ", input1)# input 2 input2 = input("Enter input 2: ") print("type of input2 : ", type(input2)) print("value of input2: ", input2)# input 3 input3 = input("Enter input 3: ") print("type of input3 : ", type(input3)) print("value of input3: ", input3)

Output

輸出量

Enter input 1: 12345 type of input1 : <class 'str'> value of input1: 12345 Enter input 2: 123.45 type of input2 : <class 'str'> value of input2: 123.45 Enter input 3: Hello [email?protected]#$ type of input3 : <class 'str'> value of input3: Hello [email?protected]#$

輸入整數(shù)和浮點(diǎn)值 (Input integer and float values)

There is no direct function that can be used to take input in either in an integer value or in a float value.

沒有直接函數(shù)可用于以整數(shù)值或浮點(diǎn)值進(jìn)行輸入。

input() function takes an input from the user of any type like integer, float, string but returns all values in string format. If we need values in an integer or float types, we need to convert them.

input()函數(shù)從用戶獲取任何類型的輸入，例如整數(shù)，浮點(diǎn)數(shù)，字符串，但以字符串格式返回所有值。 如果我們需要整數(shù)或浮點(diǎn)類型的值，則需要對(duì)其進(jìn)行轉(zhuǎn)換。

To convert input in an integer, we use int() function.

為了將輸入轉(zhuǎn)換為整數(shù)，我們使用int()函數(shù) 。

To convert input in a float, we use float() function.

為了將輸入轉(zhuǎn)換為浮點(diǎn)數(shù)，我們使用float()函數(shù) 。

Example 3: Python code to input integer and float values

示例3：用于輸入整數(shù)和浮點(diǎn)值的Python代碼

# python code to demonstrate example # of input() function# input an integer value num = int(input("Enter an integer value: ")) print("type of num: ", type(num)) print("value of num: ", num)# input a float value num = float(input("Enter a float value: ")) print("type of num: ", type(num)) print("value of num: ", num)

Output

輸出量

Enter an integer value: 12345 type of num: <class 'int'> value of num: 12345 Enter a float value: 123.45 type of num: <class 'float'> value of num: 123.45

翻譯自: https://www.includehelp.com/python/input-function-with-example.aspx

python函數(shù)示例

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