Simple Calculator
今天要寫二個整數的減法，整數差的javaScrpt語法撰寫方式如下
<html> <head> <title>Simple Calculator</title> </head> <body> <h1>Simple Calculator</h1> <form id="calculator-form"> First number: <input type="text" id="first-number"> <br> Second number: <input type="text" id="second-number"> <br> <input type="submit" value="Calculate"> </form> <p id="result"></p> <script> // Get input values var form = document.getElementById('calculator-form'); var firstNumber = document.getElementById('first-number'); var secondNumber = document.getElementById('second-number'); var result = document.getElementById('result'); // Perform calculation and display result when form is submitted form.onsubmit = function() { result.innerHTML = parseInt(firstNumber.value) - parseInt(secondNumber.value); return false; }; </script> </body> </html>
兩個整數之間的差值是一個整數減去另一個整數的結果。 例如，5 和 3 之間的差值為 2，因為 5 – 3 = 2。
兩個整數之間的差可以是正數、負數或零，具體取決於整數的值。 如果第一個整數大於第二個整數，則差值為正。 如果第一個整數小於第二個整數，則差值為負。 如果兩個整數相等，則它們的差將為零。
例如，7 和 3 之間的差值為 4，因為 7 – 3 = 4。3 和 7 之間的差值為 -4，因為 3 – 7 = -4。 5 和 5 之間的差為 0，因為 5 – 5 = 0。
要找出兩個整數之間的差值，您可以使用減法運算符 (-) 簡單地從一個整數中減去另一個整數。 您還可以使用許多編程語言中的 abs() 函數來求差的絕對值，無論減法結果的符號如何，它始終為正數。
The difference between two integers is the result of subtracting one integer from the other. For example, the difference between 5 and 3 is 2, because 5 – 3 = 2.
The difference between two integers can be positive, negative, or zero, depending on the values of the integers. If the first integer is larger than the second, the difference will be positive. If the first integer is smaller than the second, the difference will be negative. If the two integers are equal, their difference will be zero.
For example, the difference between 7 and 3 is 4, because 7 – 3 = 4. The difference between 3 and 7 is -4, because 3 – 7 = -4. The difference between 5 and 5 is 0, because 5 – 5 = 0.
To find the difference between two integers, you can simply subtract one from the other using the subtraction operator (-). You can also use the abs() function in many programming languages to find the absolute value of the difference, which will always be a positive number regardless of the sign of the result of the subtraction.
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