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 theifclause ends with a semicolon. ...
if语句(if statement)是指编程语言(包括c语言,C#,VB,汇编语言等)中用来判定所给定的条件是否满足,根据判定的结果(真或假)决定执行给出的两种操作之一。下面是小编为大家整理的C语言if语句的使用讲解,欢迎参考~ if语句的使用 用if语句可以构成分支结构。它根据给定
When the user enters 7, the test expressionnumber%2==0is evaluated to false. Hence, the statement inside the body ofelseis executed. C if...else Ladder Theif...elsestatement executes two different codes depending upon whether the test expression is true or false. Sometimes, a choice has ...
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 learnC if..else, nested if..else and else..if. C– If statement Syntax of if statement: The statements inside the body of “if” only execute ...
<C Primer Plus>8 The if statement 1#include <stdio.h>2#include <math.h>3intmain(void){4constintFREESEING =0;5floattemperature;6intcold_days =0;7intall_days =0;89printf("Please input the temperature:\n");10printf("q is quit.\n");11while(1== scanf("%f", &temperature)){12...
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...
这样的语句称为if语句(if statement)。 if语句会判断表达式的值,如果结果不为0,则执行相应的语句。括号内对条件进行判断的表达式称为控制表达式(control expression)。本程序中对控制表达式no%5的判断结果为no除以5的余数。只有当这个余数不为0,也就是no的值不能被5整除时,才会执行下列语句。
if-else Syntax in C: The basic syntax of the “if-else” statement is as follows: if (condition) { // Code block executed if the condition is true } else { // Code block executed if the condition is false } Mechanism of if-else statement in C Initiated by the “if” keyword, th...
The if statement The switch statement C# language specification See also Theif,if-elseandswitchstatements select statements to execute from many possible paths based on the value of an expression. Theifstatementexecutes a statement only if a provided Boolean expression evaluates totrue. Theif-else...
It is used to decide which block of statements will be executed based on the result of the conditional statement. Here also, the condition has only two boolean values, i.e., either true or false.If the condition is true, the statements inside the if block are executed, and if the ...