init

2023-05-01 19:37:40 +08:00
commit da2c0fadf7
133 changed files with 29002 additions and 0 deletions
--- a/Html-Javascript/23-隐式转换.html
+++ b/Html-Javascript/23-隐式转换.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+
+<script>
+
+    //正经的数据类型转换
+    //转string
+    console.log(String(123123));
+    console.log(String(true));
+
+    //转number
+    console.log(typeof Number("8898"));
+    console.log(typeof Number("这就是厚度")); //NaN
+
+    console.log(Number(true));
+    console.log(Number(false));
+
+    //转布尔(非0即为true)
+    console.log(Boolean(0));
+    console.log(Boolean(1));
+
+
+
+    //隐式转换 
+    //转字符串 +
+    // console.log(1+1);  //  2  number
+    // console.log( typeof(1+"1"));  // 11  String
+
+
+    //转数字 - * /
+    // console.log(1+true); // 2 number
+    // console.log(1+flse); // 1  number
+    // console.log("12"-1);  //  11 number
+    // console.log("12"*'2'); // 24 number
+
+
+</script>
+
+</body>
+</html>