一个if 后可跟零个或一个 else,else 必须在所有 else if 之后。 一个if 后可跟零个或多个 else if,else if 必须在 else 之前。 一旦某个 else if 匹配成功,其他的 else if 或 else 将不会被测试。语法C 语言中的 if...else if...else 语句的语法:if(boolean_expression 1) { /* 当布尔表达式...
C 语言中的 if...else if...else 语句的语法:if(boolean_expression 1) { /* 当布尔表达式 1 为真时执行 */ } else if( boolean_expression 2) { /* 当布尔表达式 2 为真时执行 */ } else if( boolean_expression 3) { /* 当布尔表达式 3 为真时执行 */ } else { /* 当上面条件都不为...
If vs. If-Else While the if statement alone is used to execute a block of code only when the condition is true, the if-else statement provides a pathway for execution when the condition is false. Use if when you only need to execute code for a true condition, and use if-else when ...
In computer programming, we use theif...elsestatement to run one block of code under certain conditions and another block of code under different conditions. For example, assigning grades (A, B, C) based on marks obtained by a student. ...
C 语言中的 if...else if...else 语句的语法:if(boolean_expression 1) { /* 当布尔表达式 1 为真时执行 */ } else if( boolean_expression 2) { /* 当布尔表达式 2 为真时执行 */ } else if( boolean_expression 3) { /* 当布尔表达式 3 为真时执行 */ } else { /* 当上面条件都不为...
// statements_if_else2.cs // else-if using System; public class IfTest { static void Main() { Console.Write("Enter a character: "); char c = (char)Console.Read(); if (Char.IsUpper(c)) { Console.WriteLine("Character is uppercase."); } else if (Char.IsLower(c)) { Console.Wr...
.else{// statement(s)} Example 3: C if...else Ladder // Program to relate two integers using =, > or < symbol#include<stdio.h>intmain(){intnumber1, number2;printf("Enter two integers: ");scanf("%d %d", &number1, &number2);//checks if the two integers are equal.if(number1...
A: OTC (Over-the-counter) programming refers to the development of custom software solutions for specific needs. While "elseif" has the same functionality in OTC programming as in any other programming language, its usage depends on the specific requirements of the software being developed. ...
cout <<"Grade C"; }elseif(marks >=40) { cout <<"Grade D"; }else{ cout <<"Grade F"; }return0; } Output: Grade B Explanation: The C++ code above illustrates the functioning of an if-else-if ladder statement. The program takes marks of a student as input and prints the grade ...
在C 编程语言中,if-else 语句用于决策。如果给定条件为真,则执行 if 块中的代码,否则执行 else 块代码。任何非零和非空值都被假定为真,零或空值被假定为假值。 语法: if(conition) { // execute statement of if block when // condition is true } else { // execute statement of else block ...