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itemprop=post itemscope itemtype=http://schema.org/CreativeWork><meta content="如何在命令行中输出进度条 | Nicksxs's Blog" itemprop=name><meta content='之前就比较好奇,命令行一般输出都是往后追加,好像不知道怎么做覆盖更新,但是很多比较厉害的shell脚本都有那种进度条,甚至整个重绘 所以就来看下,怎么在命令行里输出个会变的进度条, 比如我在命令行中输出两行 最简单就是这样子,那如果想把111改成222呢 我们发现"\n"是换行…' itemprop=description></span><header class=post-header><h1 itemprop="name headline" class=post-title>如何在命令行中输出进度条</h1><div class=post-meta-container><div class=post-meta><span class=post-meta-item><span class=post-meta-item-icon><i class="far fa-calendar"></i> </span><span class=post-meta-item-text>发表于</span> <time itemprop="dateCreated datePublished" title="创建时间:2026-08-02 21:26:43" datetime=2026-08-02T21:26:43+08:00>2026-08-02</time> </span><span class=post-meta-item><span class=post-meta-item-icon><i class="far fa-folder"></i> </span><span class=post-meta-item-text>分类于</span> <span itemprop=about itemscope itemtype=http://schema.org/Thing><a href=/categories/%E5%B0%8F%E6%8A%80%E5%B7%A7/ itemprop=url rel=index><span itemprop=name>小技巧</span></a> </span></span><span class="post-meta-item cloudflare-page-counter" data-increment=true data-path=/2026/08/02/%E5%A6%82%E4%BD%95%E5%9C%A8%E5%91%BD%E4%BB%A4%E8%A1%8C%E4%B8%AD%E8%BE%93%E5%87%BA%E8%BF%9B%E5%BA%A6%E6%9D%A1/ data-title=如何在命令行中输出进度条 title=阅读次数><span class=post-meta-item-icon><i class="far fa-eye"></i> </span><span class=post-meta-item-text>阅读次数:</span> <span class=cloudflare-page-counter-count></span></span></div><div class=post-description>之前就比较好奇,命令行一般输出都是往后追加,好像不知道怎么做覆盖更新,但是很多比较厉害的shell脚本都有那种进度条,甚至整个重绘 所以就来看下,怎么在命令行里输出个会变的进度条, 比如我在命令行中输出两行 最简单就是这样子,那如果想把111改成222呢 我们发现"\n"是换行…</div></div></header><div class=post-body itemprop=articleBody><p>之前就比较好奇,命令行一般输出都是往后追加,好像不知道怎么做覆盖更新,但是很多比较厉害的shell脚本都有那种进度条,甚至整个重绘<br>所以就来看下,怎么在命令行里输出个会变的进度条,<br>比如我在命令行中输出两行<figure class="highlight php"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br><span class=line>3</span><br></pre><td class=code><pre><span class=line><span class=keyword>echo</span> <span class=string>"111\n"</span>;</span><br><span class=line><span class=keyword>echo</span> <span class=string>"222\n"</span>;</span><br><span class=line><span class=keyword>exit</span>;</span><br></pre></table></figure><p>最简单就是这样子,那如果想把111改成222呢<br>我们发现”\n”是换行,那”\r”其实是原地移动到行首<br>可以再看下<figure class="highlight php"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br><span class=line>3</span><br><span class=line>4</span><br></pre><td class=code><pre><span class=line><span class=keyword>echo</span> <span class=string>"111\r"</span>;</span><br><span class=line><span class="title function_ invoke__">usleep</span>(<span class=number>1000</span>*<span class=number>1000</span>);</span><br><span class=line><span class=keyword>echo</span> <span class=string>"222\n"</span>;</span><br><span class=line><span class=keyword>exit</span>;</span><br></pre></table></figure><p>加了sleep是因为闪太快了看不到,这样就能看到这一行就重新刷新了<br>然后就可以看下进度条可以怎么输出了<figure class="highlight php"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br><span class=line>3</span><br><span class=line>4</span><br><span class=line>5</span><br><span class=line>6</span><br></pre><td class=code><pre><span class=line><span class=keyword>for</span> (<span class=variable>$i</span> = <span class=number>0</span>; <span class=variable>$i</span> <= <span class=number>50</span>; <span class=variable>$i</span>++) {</span><br><span class=line> <span class="title function_ invoke__">printf</span>(<span class=string>"progress: [%-50s] %d%%\r"</span>, <span class="title function_ invoke__">str_repeat</span>(<span class=string>'#'</span>,<span class=variable>$i</span>), <span class=variable>$i</span> * <span class=number>2</span>);</span><br><span class=line> <span class="title function_ invoke__">usleep</span>(<span class=number>1000</span> * <span class=number>100</span>);</span><br><span class=line>}</span><br><span class=line><span class=keyword>echo</span> <span class=string>"\n"</span>;</span><br><span class=line><span class=keyword>echo</span> <span class=string>"Done.\n"</span>;</span><br></pre></table></figure><p>首先是解释下这段的含义<figure class="highlight text"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br><span class=line>3</span><br><span class=line>4</span><br><span class=line>5</span><br></pre><td class=code><pre><span class=line>"progress: [%-50s] %d%%\r"</span><br><span class=line> └──┬──┘ │ │ └─ 回到当前行开头</span><br><span class=line> │ │ └──── 输出一个真正的 %</span><br><span class=line> │ └────── 输出整数</span><br><span class=line> └──────────── 输出宽度为 50 的字符串</span><br></pre></table></figure><p>感觉又变成了一个视觉游戏,以为是逐渐的在往后画<br>其实是一直在刷新这个进度条<br>首先是定义一个长度是50个字符的输出,用空格补全,然后会输出对应百分比,比如2%<br>就对应的是一个井号,然后用”\r”回到行首重绘<br>实际的就是第一次画一个#号,第二次画两个#号<br>这里最大的重点就是要让部分字符看着在变,部分看着不变,才能形成这种视觉假象<br>比如这里的50个字符长度,还有对应的”%”符号<br>否则就会变成一直在跳的了<br>对应的动的部分就是#号的增加,对应百分比数值也在往上涨<br>不过这里有点小问题,不知道有没有发现,它的数字没有定义位数<br>那么在达到100%的时候其实是有一点跳跃的<p>那如果想要改多行怎么办呢<br>就需要用ANSI 控制序列让光标向上移动若干行<figure class="highlight text"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br><span class=line>3</span><br></pre><td class=code><pre><span class=line>任务 A:[######## ] 40%</span><br><span class=line>任务 B:[############ ] 60%</span><br><span class=line>总进度:[########## ] 50%</span><br></pre></table></figure><p>光标此时位于这三行下面。下一次刷新前,先让光标向上移动三行:<figure class="highlight shell"><table><tr><td class=gutter><pre><span class=line>1</span><br></pre><td class=code><pre><span class=line>ESC [ 3 A</span><br></pre></table></figure><p>在php中可以写成<figure class="highlight php"><table><tr><td class=gutter><pre><span class=line>1</span><br></pre><td class=code><pre><span class=line><span class=keyword>echo</span> <span class=string>"\033[3A"</span>;</span><br></pre></table></figure><p>最简单的就是<figure class="highlight php"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br><span class=line>3</span><br><span class=line>4</span><br><span class=line>5</span><br><span class=line>6</span><br></pre><td class=code><pre><span class=line><span class=keyword>echo</span> <span class=string>"111\n"</span>;</span><br><span class=line><span class=keyword>echo</span> <span class=string>"222\n"</span>;</span><br><span class=line><span class=keyword>echo</span> <span class=string>"333\n"</span>;</span><br><span class=line><span class=keyword>echo</span> <span class=string>"\033[3A"</span>;</span><br><span class=line><span class="title function_ invoke__">usleep</span>(<span class=number>1000</span>*<span class=number>1000</span>);</span><br><span class=line><span class=keyword>echo</span> <span class=string>"444\n"</span>;</span><br></pre></table></figure><p>这样就会把前面的111,222,333给干掉,重新输出444<br>来个像样点的脚本就是<figure class="highlight php"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br><span class=line>3</span><br><span class=line>4</span><br><span class=line>5</span><br><span class=line>6</span><br><span class=line>7</span><br><span class=line>8</span><br><span class=line>9</span><br><span class=line>10</span><br><span class=line>11</span><br><span class=line>12</span><br><span class=line>13</span><br><span class=line>14</span><br><span class=line>15</span><br><span class=line>16</span><br><span class=line>17</span><br><span class=line>18</span><br><span class=line>19</span><br><span class=line>20</span><br><span class=line>21</span><br><span class=line>22</span><br><span class=line>23</span><br><span class=line>24</span><br><span class=line>25</span><br><span class=line>26</span><br><span class=line>27</span><br><span class=line>28</span><br><span class=line>29</span><br><span class=line>30</span><br><span class=line>31</span><br><span class=line>32</span><br><span class=line>33</span><br><span class=line>34</span><br><span class=line>35</span><br><span class=line>36</span><br><span class=line>37</span><br><span class=line>38</span><br><span class=line>39</span><br><span class=line>40</span><br><span class=line>41</span><br><span class=line>42</span><br></pre><td class=code><pre><span class=line><span class=meta>&LT?php</span></span><br><span class=line></span><br><span class=line><span class=function><span class=keyword>function</span> <span class=title>progressBar</span>(<span class=params><span class=keyword>int</span> <span class=variable>$percent</span>, <span class=keyword>int</span> <span class=variable>$width</span> = <span class=number>30</span></span>): <span class=title>string</span></span></span><br><span class=line><span class=function></span>{</span><br><span class=line> <span class=variable>$percent</span> = <span class="title function_ invoke__">max</span>(<span class=number>0</span>, <span class="title function_ invoke__">min</span>(<span class=number>100</span>, <span class=variable>$percent</span>));</span><br><span class=line> <span class=variable>$filled</span> = (<span class=keyword>int</span>) <span class="title function_ invoke__">floor</span>(<span class=variable>$percent</span> * <span class=variable>$width</span> / <span class=number>100</span>);</span><br><span class=line></span><br><span class=line> <span class=keyword>return</span> <span class="title function_ invoke__">sprintf</span>(</span><br><span class=line> <span class=string>"[%-<span class=subst>{$width}</span>s] %3d%%"</span>,</span><br><span class=line> <span class="title function_ invoke__">str_repeat</span>(<span class=string>'#'</span>, <span class=variable>$filled</span>),</span><br><span class=line> <span class=variable>$percent</span></span><br><span class=line> );</span><br><span class=line>}</span><br><span class=line></span><br><span class=line><span class=variable>$lineCount</span> = <span class=number>3</span>;</span><br><span class=line></span><br><span class=line><span class=keyword>for</span> (<span class=variable>$i</span> = <span class=number>0</span>; <span class=variable>$i</span> <= <span class=number>100</span>; <span class=variable>$i</span>++) {</span><br><span class=line> <span class=variable>$taskA</span> = <span class=variable>$i</span>;</span><br><span class=line> <span class=variable>$taskB</span> = <span class="title function_ invoke__">min</span>(<span class=number>100</span>, <span class=variable>$i</span> * <span class=number>2</span>);</span><br><span class=line> <span class=variable>$total</span> = (<span class=keyword>int</span>) ((<span class=variable>$taskA</span> + <span class=variable>$taskB</span>) / <span class=number>2</span>);</span><br><span class=line></span><br><span class=line> <span class=comment>// 第一次输出前不需要移动光标</span></span><br><span class=line> <span class=keyword>if</span> (<span class=variable>$i</span> > <span class=number>0</span>) {</span><br><span class=line> <span class="title function_ invoke__">printf</span>(<span class=string>"\033[%dA"</span>, <span class=variable>$lineCount</span>);</span><br><span class=line> }</span><br><span class=line></span><br><span class=line> <span class=variable>$lines</span> = [</span><br><span class=line> <span class=string>"任务 A:"</span> . <span class="title function_ invoke__">progressBar</span>(<span class=variable>$taskA</span>),</span><br><span class=line> <span class=string>"任务 B:"</span> . <span class="title function_ invoke__">progressBar</span>(<span class=variable>$taskB</span>),</span><br><span class=line> <span class=string>"总进度:"</span> . <span class="title function_ invoke__">progressBar</span>(<span class=variable>$total</span>),</span><br><span class=line> ];</span><br><span class=line></span><br><span class=line> <span class=keyword>foreach</span> (<span class=variable>$lines</span> <span class=keyword>as</span> <span class=variable>$line</span>) {</span><br><span class=line> <span class=comment>// 回到行首并清除当前整行</span></span><br><span class=line> <span class=keyword>echo</span> <span class=string>"\r\033[2K"</span>;</span><br><span class=line> <span class=keyword>echo</span> <span class=variable>$line</span>;</span><br><span class=line> <span class=keyword>echo</span> PHP_EOL;</span><br><span class=line> }</span><br><span class=line></span><br><span class=line> <span class="title function_ invoke__">fflush</span>(STDOUT);</span><br><span class=line> <span class="title function_ invoke__">usleep</span>(<span class=number>100000</span>);</span><br><span class=line>}</span><br></pre></table></figure><p>这里的符号代表的含义<table><thead><tr><th>控制序列<th>作用<tbody><tr><td><code>\r</code><td>回到当前行行首<tr><td><code>\033[2K</code><td>清除当前整行<tr><td><code>\033[3A</code><td>光标向上移动三行<tr><td><code>\033[1A</code><td>光标向上移动一行<tr><td><code>\033[1B</code><td>光标向下移动一行<tr><td>\033 表示 ESC 字符,所以:<td></table><figure class="highlight php"><table><tr><td class=gutter><pre><span class=line>1</span><br></pre><td class=code><pre><span class=line><span class=keyword>echo</span> <span class=string>"\033[3A"</span>;</span><br></pre></table></figure><p>发送给终端的实际含义是:<figure class="highlight text"><table><tr><td class=gutter><pre><span class=line>1</span><br></pre><td class=code><pre><span class=line>ESC + [3A</span><br></pre></table></figure><p>也就是“光标向上移动三行”。<br>还是比较神奇的东西<br>以前一直没搞明白,刚好这次想到了<br>现在很多想claude code,包括opencode,pi等都是搞成了命令行的<br>这个大概就是这些命令行工具的基础<br>像opencode是使用的<figure class="highlight text"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br><span class=line>3</span><br></pre><td class=code><pre><span class=line>@opentui/core</span><br><span class=line>@opentui/solid</span><br><span class=line>solid-js</span><br></pre></table></figure><p>pi则是使用<figure class="highlight text"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br></pre><td class=code><pre><span class=line>@earendil-works/pi-tui</span><br><span class=line>其他的框架还有</span><br></pre></table></figure><table><thead><tr><th>语言<th>开源库<th>定位<tbody><tr><td>TypeScript<td><a href=https://github.com/anomalyco/opentui rel=noopener target=_blank>OpenTUI</a><td>OpenCode 使用的完整 TUI<tr><td>TypeScript<td><a href=https://github.com/badlogic/pi-mono/tree/main/packages/tui rel=noopener target=_blank>pi-tui</a><td>Pi 使用的轻量差量渲染<tr><td>JavaScript<td><a href=https://github.com/vadimdemedes/ink rel=noopener target=_blank>Ink</a><td>使用 React 编写 CLI<tr><td>JavaScript<td><code>cli-progress</code><td>单个或多个进度条<tr><td>Go<td><a href=https://github.com/charmbracelet/bubbletea rel=noopener target=_blank>Bubble Tea</a><td>Elm 风格 TUI 框架<tr><td>Rust<td><a href=https://github.com/ratatui/ratatui rel=noopener target=_blank>Ratatui</a><td>Rust 生态常用 TUI<tr><td>PHP<td><a href=https://symfony.com/doc/current/console.html#output-sections rel=noopener target=_blank>Symfony Console</a><td>进度条、表格和多区域刷新<tr><td>PHP 里最省事的是 Symfony Console 的 section()<td><td></table><figure class="highlight php"><table><tr><td class=gutter><pre><span class=line>1</span><br><span class=line>2</span><br><span class=line>3</span><br><span class=line>4</span><br><span class=line>5</span><br><span class=line>6</span><br><span class=line>7</span><br><span class=line>8</span><br><span class=line>9</span><br><span class=line>10</span><br><span class=line>11</span><br><span class=line>12</span><br></pre><td class=code><pre><span class=line><span class=keyword>use</span> <span class=title>Symfony</span>\<span class=title>Component</span>\<span class=title>Console</span>\<span class=title>Output</span>\<span class=title>ConsoleOutput</span>;</span><br><span class=line></span><br><span class=line><span class=variable>$output</span> = <span class=keyword>new</span> <span class="title class_">ConsoleOutput</span>();</span><br><span class=line><span class=variable>$section</span> = <span class=variable>$output</span>-><span class="title function_ invoke__">section</span>();</span><br><span class=line></span><br><span class=line><span class=variable>$section</span>-><span class="title function_ invoke__">writeln</span>(<span class=string>"任务 A:10%\n任务 B:20%\n任务 C:30%"</span>);</span><br><span class=line></span><br><span class=line><span class="title function_ invoke__">sleep</span>(<span class=number>1</span>);</span><br><span class=line></span><br><span class=line><span class=variable>$section</span>-><span class="title function_ invoke__">overwrite</span>(</span><br><span class=line> <span class=string>"任务 A:40%\n任务 B:50%\n任务 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