题解 | #按照格式输入并输出#

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String str = scanner.nextLine();
        int i = str.indexOf(",");
        int j = str.indexOf("=");
        String n1 = str.substring(j + 1,i);
        String n2 = str.substring(i + 3);
        System.out.println("a=" + n2 + ",b=" + n1);
    }
}