Button

用于展示按钮或具有按钮外观的组件。

更新： 我们为按钮组件新增了 icon-sm 与 icon-lg 两种尺寸，详情参见更新日志。请按照说明更新你的项目。

import { ArrowUpIcon } from "lucide-react"

import { Button } from "@/components/ui/button"

export function ButtonDemo() {
  return (
    <div className="flex flex-wrap items-center gap-2 md:flex-row">
      <Button variant="outline">Button</Button>
      <Button variant="outline" size="icon" aria-label="Submit">
        <ArrowUpIcon />
      </Button>
    </div>
  )
}

<Button variant="outline">Button</Button>
<Button variant="outline" size="icon" aria-label="Submit">
  <ArrowUpIcon />
</Button>

安装


pnpm dlx shadcn@latest add button

用法

import { Button } from "@/components/ui/button"

<Button variant="outline">Button</Button>

光标

Tailwind v4 已将按钮组件的默认光标从 cursor: pointer 调整为 cursor: default。

如果希望保留 cursor: pointer 行为，可在 CSS 中加入以下代码：

globals.css

@layer base {
  button:not(:disabled),
  [role="button"]:not(:disabled) {
    cursor: pointer;
  }
}

示例

尺寸

import { ArrowUpRightIcon } from "lucide-react"

import { Button } from "@/components/ui/button"

export function ButtonSize() {
  return (
    <div className="flex flex-col items-start gap-8 sm:flex-row">
      <div className="flex items-start gap-2">
        <Button size="sm" variant="outline">
          Small
        </Button>
        <Button size="icon-sm" aria-label="Submit" variant="outline">
          <ArrowUpRightIcon />
        </Button>
      </div>
      <div className="flex items-start gap-2">
        <Button variant="outline">Default</Button>
        <Button size="icon" aria-label="Submit" variant="outline">
          <ArrowUpRightIcon />
        </Button>
      </div>
      <div className="flex items-start gap-2">
        <Button variant="outline" size="lg">
          Large
        </Button>
        <Button size="icon-lg" aria-label="Submit" variant="outline">
          <ArrowUpRightIcon />
        </Button>
      </div>
    </div>
  )
}

// Small
<Button size="sm" variant="outline">Small</Button>
<Button size="icon-sm" aria-label="Submit" variant="outline">
  <ArrowUpRightIcon />
</Button>
 
// Medium
<Button variant="outline">Default</Button>
<Button size="icon" aria-label="Submit" variant="outline">
  <ArrowUpRightIcon />
</Button>
 
// Large
<Button size="lg" variant="outline">Large</Button>
<Button size="icon-lg" aria-label="Submit" variant="outline">
  <ArrowUpRightIcon />
</Button>

默认样式

import { Button } from "@/components/ui/button"

export function ButtonDefault() {
  return <Button>Button</Button>
}

<Button>Button</Button>

Outline

import { Button } from "@/components/ui/button"

export function ButtonOutline() {
  return <Button variant="outline">Outline</Button>
}

<Button variant="outline">Outline</Button>

Secondary

import { Button } from "@/components/ui/button"

export function ButtonSecondary() {
  return <Button variant="secondary">Secondary</Button>
}

<Button variant="secondary">Secondary</Button>

Ghost

import { Button } from "@/components/ui/button"

export function ButtonGhost() {
  return <Button variant="ghost">Ghost</Button>
}

<Button variant="ghost">Ghost</Button>

Destructive

import { Button } from "@/components/ui/button"

export function ButtonDestructive() {
  return <Button variant="destructive">Destructive</Button>
}

<Button variant="destructive">Destructive</Button>

Link

import { Button } from "@/components/ui/button"

export function ButtonLink() {
  return <Button variant="link">Link</Button>
}

<Button variant="link">Link</Button>

Icon

import { CircleFadingArrowUpIcon } from "lucide-react"

import { Button } from "@/components/ui/button"

export function ButtonIcon() {
  return (
    <Button variant="outline" size="icon">
      <CircleFadingArrowUpIcon />
    </Button>
  )
}

<Button variant="outline" size="icon" aria-label="Submit">
  <CircleFadingArrowUpIcon />
</Button>

带图标的文本按钮

图标与文字之间的间距会根据按钮尺寸自动调整，无需为图标单独设置外边距。

import { IconGitBranch } from "@tabler/icons-react"

import { Button } from "@/components/ui/button"

export function ButtonWithIcon() {
  return (
    <Button variant="outline" size="sm">
      <IconGitBranch /> New Branch
    </Button>
  )
}

<Button variant="outline" size="sm">
  <IconGitBranch /> New Branch
</Button>

圆形

使用 rounded-full 类让按钮成为圆形。

import { ArrowUpIcon } from "lucide-react"

import { Button } from "@/components/ui/button"

export function ButtonRounded() {
  return (
    <div className="flex flex-col gap-8">
      <Button variant="outline" size="icon" className="rounded-full">
        <ArrowUpIcon />
      </Button>
    </div>
  )
}

<Button variant="outline" size="icon" className="rounded-full">
  <ArrowUpRightIcon />
</Button>

加载态

import { Button } from "@/components/ui/button"
import { Spinner } from "@/components/ui/spinner"

export function ButtonLoading() {
  return (
    <Button size="sm" variant="outline" disabled>
      <Spinner />
      Submit
    </Button>
  )
}

<Button size="sm" variant="outline" disabled>
  <Spinner />
  Submit
</Button>

按钮组

若要创建按钮组，可使用 ButtonGroup 组件。更多细节请参阅 Button Group 文档。

"use client"

import * as React from "react"
import {
  ArchiveIcon,
  ArrowLeftIcon,
  CalendarPlusIcon,
  ClockIcon,
  ListFilterPlusIcon,
  MailCheckIcon,
  MoreHorizontalIcon,
  TagIcon,
  Trash2Icon,
} from "lucide-react"

import { Button } from "@/components/ui/button"
import { ButtonGroup } from "@/components/ui/button-group"
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuGroup,
  DropdownMenuItem,
  DropdownMenuRadioGroup,
  DropdownMenuRadioItem,
  DropdownMenuSeparator,
  DropdownMenuSub,
  DropdownMenuSubContent,
  DropdownMenuSubTrigger,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu"

export function ButtonGroupDemo() {
  const [label, setLabel] = React.useState("personal")

  return (
    <ButtonGroup>
      <ButtonGroup className="hidden sm:flex">
        <Button variant="outline" size="icon" aria-label="Go Back">
          <ArrowLeftIcon />
        </Button>
      </ButtonGroup>
      <ButtonGroup>
        <Button variant="outline">Archive</Button>
        <Button variant="outline">Report</Button>
      </ButtonGroup>
      <ButtonGroup>
        <Button variant="outline">Snooze</Button>
        <DropdownMenu>
          <DropdownMenuTrigger asChild>
            <Button variant="outline" size="icon" aria-label="More Options">
              <MoreHorizontalIcon />
            </Button>
          </DropdownMenuTrigger>
          <DropdownMenuContent align="end" className="w-52">
            <DropdownMenuGroup>
              <DropdownMenuItem>
                <MailCheckIcon />
                Mark as Read
              </DropdownMenuItem>
              <DropdownMenuItem>
                <ArchiveIcon />
                Archive
              </DropdownMenuItem>
            </DropdownMenuGroup>
            <DropdownMenuSeparator />
            <DropdownMenuGroup>
              <DropdownMenuItem>
                <ClockIcon />
                Snooze
              </DropdownMenuItem>
              <DropdownMenuItem>
                <CalendarPlusIcon />
                Add to Calendar
              </DropdownMenuItem>
              <DropdownMenuItem>
                <ListFilterPlusIcon />
                Add to List
              </DropdownMenuItem>
              <DropdownMenuSub>
                <DropdownMenuSubTrigger>
                  <TagIcon />
                  Label As...
                </DropdownMenuSubTrigger>
                <DropdownMenuSubContent>
                  <DropdownMenuRadioGroup
                    value={label}
                    onValueChange={setLabel}
                  >
                    <DropdownMenuRadioItem value="personal">
                      Personal
                    </DropdownMenuRadioItem>
                    <DropdownMenuRadioItem value="work">
                      Work
                    </DropdownMenuRadioItem>
                    <DropdownMenuRadioItem value="other">
                      Other
                    </DropdownMenuRadioItem>
                  </DropdownMenuRadioGroup>
                </DropdownMenuSubContent>
              </DropdownMenuSub>
            </DropdownMenuGroup>
            <DropdownMenuSeparator />
            <DropdownMenuGroup>
              <DropdownMenuItem variant="destructive">
                <Trash2Icon />
                Trash
              </DropdownMenuItem>
            </DropdownMenuGroup>
          </DropdownMenuContent>
        </DropdownMenu>
      </ButtonGroup>
    </ButtonGroup>
  )
}

<ButtonGroup>
  <ButtonGroup>
    <Button variant="outline" size="icon" aria-label="返回">
      <ArrowLeftIcon />
    </Button>
  </ButtonGroup>
  <ButtonGroup>
    <Button variant="outline">归档</Button>
    <Button variant="outline">举报</Button>
  </ButtonGroup>
  <ButtonGroup>
    <Button variant="outline">稍后处理</Button>
    <DropdownMenu>
      <DropdownMenuTrigger asChild>
        <Button variant="outline" size="icon" aria-label="更多选项">
          <MoreHorizontalIcon />
        </Button>
      </DropdownMenuTrigger>
      <DropdownMenuContent />
    </DropdownMenu>
  </ButtonGroup>
</ButtonGroup>

链接按钮

可以使用 asChild 属性让其他组件呈现按钮样式。下方示例演示了一个看起来像按钮的链接。

import Link from "next/link"
 
import { Button } from "@/components/ui/button"
 
export function LinkAsButton() {
  return (
    <Button asChild>
      <Link href="/login">登录</Link>
    </Button>
  )
}

API 参考

Button

Button 组件基于原生 button 元素封装，提供多种样式与功能。

Prop	Type	Default
`variant`	`"default" \| "outline" \| "ghost" \| "destructive" \| "secondary" \| "link"`	`"default"`
`size`	`"default" \| "sm" \| "lg" \| "icon" \| "icon-sm" \| "icon-lg"`	`"default"`
`asChild`	`boolean`	`false`

更新日志

2025-09-24 新增尺寸

我们为按钮组件新增了 icon-sm 与 icon-lg 两种尺寸，用于构建图标按钮。要启用它们，请在 button.tsx 中的 buttonVariants 配置里为 size 添加如下代码：

components/ui/button.tsx

const buttonVariants = cva("...", {
  variants: {
    size: {
      // ...
      "icon-sm": "size-8",
      "icon-lg": "size-10",
      // ...
    },
  },
})

Button Group Calendar