#if、#elif、#else、#endif #if可支持同时判断多个宏的存在,与常量表达式配合使用。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #if常量表达式1// ... some codes#elif 常量表达式2// ... other codes#elif 常量表达式3// ......#else// ... statement#endif 常
The “if-else” statement in C programming holds the power to guide your code’s execution path based on conditions. By using “if-else” statements, you can build adaptable applications that cater to a range of scenarios, from grading systems to authentication processes and interactive menus. ...
The following are examples of theifstatement: C if( i >0) y = x / i;else{ x = i; y = f( x ); } In this example, the statementy = x/i;is executed ifiis greater than 0. Ifiis less than or equal to 0,iis assigned tox, andf( x )is assigned toy. The statement forming...
if (expression)statementelsestatement 在两种形式的if语句中,将计算可具有结构之外的任何值的表达式(包括所有副作用)。 在第一种形式的语法中,如果expression为 true(非零),则执行statement。 如果expression为 false,则忽略statement。 在第二种形式的语法(使用了else)中,如果expression为 false,则执行第二个statement...
Working of if Statement To learn more about when test expression is evaluated to true (non-zero value) and false (0), checkrelationalandlogical operators. Example 1: if statement // Program to display a number if it is negative#include<stdio.h>intmain(){intnumber;printf("Enter an integer...
When we need to execute a block of statements only when a given condition is true then we use if statement. In the next tutorial, we will learn C if..else, nested if..else and else..if. C - If statement Syntax of if statement: The statements inside the b
The `if` and `switch` statements provide branching logic in C#. You use `if, `else` and `switch` to choose the path your program follows.
In the last tutorial we learned how to use if statement in C. In this guide, we will learn how to use if else, nested if else and else if statements in a C Program. C If else statement Syntax of if else statement: If condition returns true then the state
#if、#elif、#else、#endif #if可支持同时判断多个宏的存在,与常量表达式配合使用。 #if 常量表达式1 // ... some codes #elif 常量表达式2 // ... other codes #elif 常量表达式3 // ... ... #else // ... statement #endif 1. 2. ...
而是表达式的结果，解释如下1、if语句的形式：if (condition) statement_1 else statement_2...