<!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> // Math.random() 随机生成0-1之间的数字 小数 var a = Math.random(); console.log(a); </script> </body> </html>
