本文概述
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
// 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 Method
import 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 Operator
import 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:
The value of a is: 1
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首先, 你的面试准备可通过以下方式增强你的数据结构概念:Python DS课程。