将 if 语句与 arduino 中的比较运算符一起使用 if 语句用于检查不同的条件,如果条件为真,则将执行 if 语句括号内的代码;否则,不会。 if 语句的输入参数是一个 布尔值 ,可以为 true 或 false。 if 语句的基本语法如下。 void loop(){ if(condition){ your code; } } 在上面的代码中,条件是一个布尔值。 如果条件为真,则将执行 if 语句中的代码;否则,不执行。 现在我们如何使用比较运算. Description the if statement checks for a condition and executes the proceeding statement or set of statements if the condition is 'true'. Syntax if (condition) { //statement (s) } parameters condition:
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The if. else allows greater control over the flow of code than the basic if statement, by allowing multiple tests to be grouped. An else clause (if at all exists) will be executed if the condition in the if statement results in false. The else can proceed another if test, so that multiple, mutually exclusive tests can be run at the same time. Arduino の比較演算子で if ステートメントを使用する if ステートメントはさまざまな条件をチェックするために使用されます。 条件が true の場合、 if ステートメントの括弧内のコードが実行されます。 そうでなければ、そうではありません。 if ステートメントの入力パラメーターは ブール値 であり、true または false のどちらでもかまいません。 if ステートメントの基本的. It takes an expression in parenthesis and a statement or block of statements. If the expression is true then the statement or block of statements gets executed otherwise these statements are skipped. Different forms of if statement form 1 if (expression) statement; You can use the if statement without braces { } if you have one statement. The if statement checks for a condition and executes the proceeding statement or set of statements if the condition is 'true'.
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In this lesson we investigate use of IF statements in a practical arduino project example. We will read a voltage from a potentiometer, and then turn an LED on if the voltage is above 4 volts. We will learn the different conditional commands in the IF statement.
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