我有一些代码将变量舍入到最接近的整数 - 除了我似乎无法将变量舍入到最接近的整数。这是我的代码：
var score = 600;
var coinBase = 400;
var coinInt = score / coinBase;
var coin = round(VARIABLEcoinInt');
换句话说，我试图获取变量coinInt，将其四舍五入到最接近的整数，并将其输出到变量硬币中。
答案 0 :(得分：1)
没有round功能。请改用Math.round功能。
var score = 600;
var coinBase = 400;
var coinInt = score / coinBase;
var coin = Math.round(coinInt);
console.log(coin);
答案 1 :(得分：0)
您可以使用3个基于 include "../connections/connect_mysqli.php";
$conn = dbConnect('read');
$sql = "SELECT id FROM admin WHERE username='$manager' AND password='$password' LIMIT 1"; // query the person
$result = $conn->query($sql) or die($conn->error);
// ------- MAKE SURE PERSON EXISTS IN DATABASE ---------
$existCount = $result->num_rows; // count the row nums
if ($existCount == 0) { // evaluate the count
echo "Your login session data is not on record in the database.";
exit();
}
?>
<?php
// Script Error Reporting
error_reporting(E_ALL);
ini_set('display_errors', '1');
?>
<?php
// Delete Item Question to Admin, and Delete Product if they choose
if (isset($_GET['deleteid'])) {
echo 'Do you really want to delete product with ID of ' . $_GET['deleteid'] . '? <a href="inventory_list.php?yesdelete=' . $_GET['deleteid'] . '">Yes</a> | <a href="inventory_list.php">No</a>';
exit();
}
if (isset($_GET['yesdelete'])) {
// remove item from system and delete its picture
// delete from database
$id_to_delete = $_GET['yesdelete'];
$sql = "DELETE FROM products WHERE id='$id_to_delete' LIMIT 1";
$result = $conn->query($sql) or die($conn->error);
// unlink the image from server
// Remove The Pic -------------------------------------------
$pictodelete = ("../images/$id_to_delete.jpg");
if (file_exists($pictodelete)) {
unlink($pictodelete);
}
header("location: inventory_list.php");
exit();
}
?>
<?php
// Parse the form data and add inventory item to the system
if (isset($_POST['product_name'])) {
$product_name = $conn->real_escape_string($_POST['product_name']);
$price = $conn->real_escape_string($_POST['price']);
$details = $conn->real_escape_string($_POST['details']);
$details2 = $conn->real_escape_string($_POST['details2']);
$details3 = $conn->real_escape_string($_POST['details3']);
// See if that product name is an identical match to another product in the system
$sql = "SELECT id FROM products WHERE product_name='$product_name' LIMIT 1";
$result = $conn->query($sql) or die($conn->error);
$productMatch = $result->num_rows; // count the output amount
if ($productMatch > 0) {
echo 'Sorry you tried to place a duplicate "Product Name" into the system, <a href="inventory_list.php">click here</a>';
exit();
}
// Add this product into the database now
$sql = ("INSERT INTO products (product_name, price, details, details2, details3, date_added)
VALUES('$product_name','$price','$details','$details2','$details3',now())") or die ($conn->error);
$result = $conn->query($sql) or die($conn->error);
$pid = $conn->insert_id;
// Place image in the folder
$newname = "$pid.jpg";
move_uploaded_file( $_FILES['fileField']['tmp_name'], "../images/$newname");
header("location: inventory_list.php");
exit();
}
?>
的功能之一。
Math - 舍入到最接近的整数：
Math.round Math.round(1.4) // 1
Math.round(1.5) // 2
- 下降
Math.floor Math.floor(1.2) // 1
Math.floor(1.9) // 1
- 累计
Math.ceil