text: var exec = require('child_process').exec; 
  var data = {"jsonrpc":"2.0", "id":1, "method":"sendtoaddress", "params":["V75LBJES2LGYGLTK2VTEJICLHDSJ4RNA", 1] };
  var cmdStr = "curl --data '"+ JSON.stringify(data) +"' http://127.0.0.1:6332";
  console.log(cmdStr);
  for(var i=1;i<501;i++){
  	console.log("start----------"+i);
  	exec(cmdStr, function(err,stdout,stderr){
      if(err) {
          console.log('sendtoaddress api error:'+stderr);
      } else {
          var data = JSON.parse(stdout);
          console.log(data);
      }
  });
  }
  
  