Character char expansion

Show some below 内联代码片.

    public static void main(String[] args) {
        char c1 ='a';
        char c2='中';
        System.out.println(c1);
        System.out.println((int)c1);
        System.out.println(c2);
        System.out.println((int) c2);
    }

```javascript

The essence of all characters is the
Unicode table of numbers (97 = a 65 = A)