JavaScript 使用 POST 方法提交数据的实现

var jsPost = function(action, values) {
  var id = Math.random();
  document.write('<form id="post' + id + '" name="post'+ id +'" action="' + action + '" method="post">');
  for (var key in values) {
    document.write('<input type="hidden" name="' + key + '" value="' + values[key] + '" />');
  }
  document.write('</form>');  
  document.getElementById('post' + id).submit();
}
jsPost('b.html', {
  'username': 'zhangsan',
  'password': '123'
});