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小伙看你根骨奇佳，潜力无限，来学PHP伐。
Scanner scanner
Scanner后面不要带点。
Scanner scanner=new Scanner(System.in); int in = scanner.nextInt();
Scanner后面不能有点的，你代码的意思是：new一个对象。
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Scanner scanner
Scanner后面不要带点。
Scanner后面不能有点的，你代码的意思是：new一个对象。