sweetAlert()参数配置

      alertTypes   = ['error', 'warning', 'info', 'success'],
      defaultParams = {
        title: '',
        text: '',
        type: null,
        allowOutsideClick: false,
        showCancelButton: false,
        closeOnConfirm: true,
        closeOnCancel: true,
        confirmButtonText: 'OK',
        confirmButtonColor: '#AEDEF4',
        cancelButtonText: 'Cancel',
        imageUrl: null,
        imageSize: null,
        timer: null,
        customClass: '',
        html: false,
        animation: true,
        allowEscapeKey: true
      };