if (A == 10) c = 0; else c = 1; ...and you can even put it all on one line for super-compact code:if (A == 10) c = 0; else c = 1; Arduino if statement without else It is also valid to write an if statement without the else part:...
Code in the body of theelsestatement runs. Below is an example showing how to use theif-elsestatement: intStudent1_Marks=92;intStudent2_Marks=20;voidsetup(){Serial.begin(9600);if(Student1_Marks>33){Serial.println("The student1 marks is greater than 33. He passed the exam."...
if 语句后可以跟可选的 else if ... else 语句,这对于使用单个if ... else if语句测试各种条件非常有用。 If…else if …else - 语法 if (expression_1) { Block of statements; } else if(expression_2) { Block of statements; } . . . else { Block of statements; } 1. 2. 3. 4. 5. ...
else if (boolean expression) { statement(s) } else { statement(s) } 3.3 //(单行注释) Comments(注释) 注释用于提醒自己或他人程序是如何工作的。它们会被编译器忽略掉,也不会传送给处理器,不会执行,所以它们在Atmega芯片上不占用体积。 注释的唯一作用就是使你自己理解或帮你回忆你的程序是怎么工作的或...
An "if" statement has the general form of: if (condition) light_led1; else turn_off_led1; The "else" part is optional. "Condition" is boolean term using "true" or "false" A "true" condition lights LED1, a "false" condition turns LED1 OFF. The Arduino compiler defines "true" ...
statement(s) } else if (boolean expression) { statement(s) } else { statement(s) } 3.3 //(单行注释) Comments(注释) 注释用于提醒自己或他人程序是如何工作的。它们会被编译器忽略掉,也不会传送给处理器,不会执行,所以它们在Atmega芯片上不占用体积。 注释的唯一作用就是使你自己理解或帮你回忆你的程...
if(booleanexpression) { statement(s) } elseif(booleanexpression) { statement(s) } else { statement(s) } 3.3 //(单行注释) Comments(注释) 注释用于提醒自己或他人程序是如何工作的。它们会被编译器忽略掉,也不会传送给处 理器,所以它们在 Atmega 芯片上不占用体积。注释的唯一作用就是使你自己理解或...
if...elseif...else语句执⾏顺序 例⼦ /*Globalvariabledefinition*/ intA=5; intB=9; intc=15; Voidsetup(){ } Voidloop(){ /*checkthebooleancondition*/ if(A>B)/*ifconditionistruethenexecutethefollowingstatement*/{ A++; } /*checkthebooleancondition*/ ...
statement(s) } 条件语句 if(boolean expression) { statement(s) } elseif(boolean expression) { statement(s) } else { statement(s) } Comments 注释用于提醒自己或他人程序是如何工作的。它们会被编译器忽略掉,也不会传送给处理器,所以它们在Atmega芯片上不占用体积。注释的唯一作用就是使你自己理解或帮你...
大括号中的主要用途功能void myfunction(datatype argument) statements(s) 循环while (boolean expression) statement(s) do st 29、atement(s) while (boolean expression); for (initialisation; termination condition; incrementing expr) statement(s) 条件语句if (boolean expression) statement(s) else if (...