如何使用Python和其他语言为变量赋值 _Python特殊变量

本文概述

Python3
C
C ++
Java
C
C ++
Java
Python3

本文讨论将值分配给变量的方法。
方法1：直接初始化方法
Python3

# Python 3 code to demonstrate variable assignment # upon condition using Direct Initialisation Method# initialising variable directly a = 5# printing value of a print ( "The value of a is: " + str (a))

// C code to demonstrate variable assignment // upon condition using Direct Initialisation Method#include < stdio.h> int main() { // initialising variables directly int a = 5; // printing value of a printf ( "The value of a is: %d" , a); }

C ++

// C++ code to demonstrate variable assignment // upon condition using Direct Initialisation Method#include < bits/stdc++.h> using namespace std; int main() { // initialising variables directly int a = 5; // printing value of a cout < < "The value of a is: " < < a; }

Java

// Java code to demonstrate variable assignment // upon condition using Direct Initialisation Methodimport java.io.*; class GFG { public static void main(String args[]) {// initialising variables directly int a = 5 ; // printing value of a System.out.println( "The value of a is: " + a); } }

输出如下：

The value of a is: 5

方法2：使用条件运算符(？:)
以下是其他流行语言的语法。
C

// C code to demonstrate variable assignment // upon condition using Conditional Operator#include < stdio.h> int main() { // initialising variables using Conditional Operator int a = 20 > 10 ? 1 : 0; // printing value of a printf ( "The value of a is: %d" , a); }

C ++

// C++ code to demonstrate variable assignment // upon condition using Conditional Operator#include < bits/stdc++.h> using namespace std; int main() { // initialising variables using Conditional Operator int a = 20 > 10 ? 1 : 0; // printing value of a cout < < "The value of a is: " < < a; }

Java

// Java code to demonstrate variable assignment // upon condition using Conditional Operatorimport java.io.*; class GFG { public static void main(String args[]) {// initialising variables using Conditional Operator int a = 20 > 10 ? 1 : 0 ; // printing value of a System.out.println( "The value of a is: " + a); } }

输出如下：

The value of a is: 1

一个内联if-else代替Python中的条件运算符(？:)
Python3

# Python 3 code to demonstrate variable assignment # upon condition using One liner if-else# initialising variable using Conditional Operator # a = 20 > 10 ? 1 : 0 is not possible in Python # Instead there is one liner if-else a = 1 if 20 > 10 else 0# printing value of a print ( "The value of a is: " + str (a))

输出如下：