Create index.html

18996677975 · web-flow · commit fe05cf3e43ef · 2020-02-14T20:38:24.000+08:00
diff --git a/JavaScript之将数字字符转换为数字以参与数学运算-渐进HTML7/index.html b/JavaScript之将数字字符转换为数字以参与数学运算-渐进HTML7/index.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>将数字字符转化为数字以参与数学运算</title>
+</head>
+<body>
+    <script>
+        var price = "123.5";
+        var num = "8";
+        var amount;
+
+        amount = parseFloat(price) * parseInt(num);
+        window.alert("您购买的商品单价为" + price + "元，您将有购买" + num + "个，金额为" + amount + "元。");
+    </script>
+</body>
+</html>
