用java语言写

Answer 1

    static int argument;
    static int count=0;
    
    public static void main(String[] args){        
        argument=5;
        printResult("",argument);
        System.out.println("总共"+count+"种");
    }
    public static void printResult(String result,int left){
        if(left==1){
            System.out.print(argument+"=");
            for(int i=0;i<result.length();i++){
                System.out.print(result.charAt(i)+"+");
            }
            System.out.print(1);
            System.out.println();
            count++;
        }
        else if(left==2){
            System.out.print(argument+"=");
            for(int i=0;i<result.length();i++){
                System.out.print(result.charAt(i)+"+");
            }
            System.out.print(2);
            System.out.println();
            count++;
            printResult(result+"1",left-1);
        }
        else{
            printResult(result+"1",left-1);
            printResult(result+"2",left-2);
        }
    }

不光把铺法数量输出了，还把具体的铺法输出了