placement手动设置属性无效

[xupengcheng-web]

placement手动设置后，还是被设置成其他属性例如【x-placement="bottom-start"】，尤其是页面宽度被限制的时候,但是我手动设置了【placement="top-start"】,应该是手动设置元素就不能用js更改这里的配置

[zzsf-com]

手动设置了 top-start，和页面宽度有什么关系？【要是说高度限制了还有看不到的可能】；而且亲测placement设置没有任何问题

const TooltipDemo = {
    template: `
      <div>
        <Tooltip content="上左角" :placement="pos.tl">
          <Button type="primary" >上左角</Button>
        </Tooltip>
        <Tooltip content="上中" :placement="pos.t">
          <Button type="primary" >上中</Button>
        </Tooltip>
        <Tooltip content="上右角" :placement="pos.tr">
          <Button type="primary" >上右角</Button>
        </Tooltip>
        <Tooltip content="下左角" :placement="pos.bl">
          <Button type="primary" >下左角</Button>
        </Tooltip>
        <Tooltip content="下中" :placement="pos.b">
          <Button type="primary" >下中</Button>
        </Tooltip>
        <Tooltip content="下右角" :placement="pos.br">
          <Button type="primary" >下右角</Button>
        </Tooltip>
        <Tooltip content="左开始" :placement="pos.ls">
          <Button type="primary" >左开始</Button>
        </Tooltip>
        <Tooltip content="左中" :placement="pos.l">
          <Button type="primary" >左中</Button>
        </Tooltip>
        <Tooltip content="左结束" :placement="pos.le">
          <Button type="primary" >左结束</Button>
        </Tooltip>
        <Tooltip content="右开始" :placement="pos.rs">
          <Button type="primary" >右开始</Button>
        </Tooltip>
        <Tooltip content="右中" :placement="pos.r">
          <Button type="primary" >右中</Button>
        </Tooltip>
        <Tooltip content="右结束" :placement="pos.re">
          <Button type="primary" >右结束</Button>
        </Tooltip>
      </div>
    `,
    data() {
      return {
        pos: {
          tl: "top-start",
          t: "top",
          tr: "top-end",
          bl: "bottom-start",
          b: "bottom",
          br: "bottom-end",
          ls: "left-start",
          l: "left",
          le: "left-end",
          rs: "right-start",
          r: "right",
          re: "right-end",
        },
      };
    },
  };