搜索这个函数:

Modal.prototype.adjustDialog

修改为

Modal.prototype.adjustDialog = function () {
    var modalIsOverflowing = this.$element[0].scrollHeight > document.documentElement.clientHeight

    this.$element.css({
      paddingLeft:  !this.bodyIsOverflowing && modalIsOverflowing ? this.scrollbarWidth : '',
      paddingRight: this.bodyIsOverflowing && !modalIsOverflowing ? this.scrollbarWidth : ''
    })
//添加的代码
    var $modal_dialog = $(this.$element[0]).find('.modal-dialog');
    var m_top = ( $(document).height() - $modal_dialog.height() )/2;
    $modal_dialog.css({'margin':m_top + 'px auto'});
  }

是不是很简单

转载请注明：有爱前端 » bootstrap modal 模态框 垂直居中