interface Int(); class t1; integer a[string]; //REQ-EXT-10007 function new; //class constructor body need be modified according to REQ-EXT-10007 a["a"] =40; a["b"] =60; a["c"] =80; endfunction endclass class t2; integer b[string]; //REQ-EXT-10007 function new; //class constructor body need be modified according to REQ-EXT-10007 b["aa"] =44; b["bb"] =66; b["cc"] =88; endfunction endclass t1 inst1 =new; //REQ-EXT-10501 t2 inst2 =new; //REQ-EXT-10501 endinterface module top; Int in(); virtual Int testint =in; integer array[string]; //data type of array need be modified according to REQ-EXT-10007 initial begin #1; array =testint.inst1.a; $display("testint.inst1.a =%p", testint.inst1.a); //CHECK-001:'{"a":40, "b":60, "c":80} $display("array = %p", array); //CHECK-002:'{"a":40, "b":60, "c":80} #2; array =testint.inst2.b; $display("testint.inst2.b =%p", testint.inst2.b); //CHECK-003:'{"aa":44, "bb":66,"cc":88} $display("array =%p", array); //CHECK-004:'{"aa":44, "bb":66,"cc":88} end 根据REQ-EXT-10501这个拓展点，你可以帮我修改一下这段代码吗？如果能多修改几个版本就最好啦！

根据 REQ-EXT-10501 这个拓展点，我们需要修改的是 interface Int 中的构造函数，使其能够初始化 t1 和 t2 中的 a 和 b 数组。同时，我们需要修改 module top 中的 integer array 的数据类型，以支持 string 类型的索引。下面是修改后的代码：

interface Int();
  class t1;
    integer a[string];  //REQ-EXT-10007
    function new();
      a = '{"a":40, "b":60, "c":80};  //REQ-EXT-10007
    endfunction
  endclass

  class t2;
    integer b[string];  //REQ-EXT-10007
    function new();
      b = '{"aa":44, "bb":66, "cc":88};  //REQ-EXT-10007
    endfunction
  endclass

  t1 inst1 = new(); //REQ-EXT-10501
  t2 inst2 = new(); //REQ-EXT-10501
endinterface

module top;
  Int in();
  virtual Int testint = in;
  int array[string]; //REQ-EXT-10007

  initial begin
    #1;
    array = testint.inst1.a;
    $display("testint.inst1.a = %p", testint.inst1.a); //CHECK-001: '{"a":40, "b":60, "c":80}'
    $display("array = %p", array); //CHECK-002: '{"a":40, "b":60, "c":80}'

    #2;
    array = testint.inst2.b;
    $display("testint.inst2.b = %p", testint.inst2.b); //CHECK-003: '{"aa":44, "bb":66, "cc":88}'
    $display("array = %p", array); //CHECK-004: '{"aa":44, "bb":66, "cc":88}'
  end
endmodule

这样就可以满足 REQ-EXT-10501 的要求了。如果有其他的要求或者需要修改的地方，可以再提出来，我会尽力帮忙修改。