
    <button nz-button nzTooltipTitle="prompt text" nzTooltipPlacement="topLeft" nz-tooltip>
      Align edge / 边缘对齐
    </button>
    <button
      nz-button
      nz-tooltip
      nzTooltipTitle="prompt text"
      nzTooltipPlacement="bottomLeft"
      [nzTooltipArrowPointAtCenter]="true"
    >
      Arrow points to center / 箭头指向中心
    </button>
  