{"id":954333,"date":"2024-12-27T01:55:43","date_gmt":"2024-12-26T17:55:43","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/954333.html"},"modified":"2024-12-27T01:55:44","modified_gmt":"2024-12-26T17:55:44","slug":"python%e5%a6%82%e4%bd%95%e5%8a%a0%e8%bd%bd%e4%b8%b2%e5%8f%a3%e6%a8%a1%e5%9d%97","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/954333.html","title":{"rendered":"python\u5982\u4f55\u52a0\u8f7d\u4e32\u53e3\u6a21\u5757"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25094550\/45f9d335-ba45-4610-bcc9-f78471acb28e.webp\" alt=\"python\u5982\u4f55\u52a0\u8f7d\u4e32\u53e3\u6a21\u5757\" \/><\/p>\n<p><p> <strong>\u52a0\u8f7dPython\u4e32\u53e3\u6a21\u5757\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528pySerial\u5e93\u3001\u901a\u8fc7pip\u5b89\u88c5\u3001\u5bfc\u5165serial\u6a21\u5757\u3002<\/strong> \u5176\u4e2d\uff0c<strong>\u4f7f\u7528pySerial\u5e93<\/strong> \u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u63a5\u53e3\u6765\u8bbf\u95ee\u4e32\u53e3\u8bbe\u5907\uff0c\u652f\u6301\u591a\u79cd\u5e73\u53f0\uff0c\u5e76\u4e14\u6613\u4e8e\u5b89\u88c5\u548c\u4f7f\u7528\u3002\u4e3a\u4e86\u66f4\u8be6\u7ec6\u5730\u63cf\u8ff0\u8fd9\u4e00\u70b9\uff0c\u9996\u5148\u9700\u8981\u786e\u4fdd\u4f60\u7684Python\u73af\u5883\u4e2d\u5df2\u7ecf\u5b89\u88c5\u4e86pySerial\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528pip\u547d\u4ee4\u6765\u8fdb\u884c\u5b89\u88c5\uff0c\u7136\u540e\u901a\u8fc7import\u8bed\u53e5\u5bfc\u5165serial\u6a21\u5757\uff0c\u5c31\u53ef\u4ee5\u5f00\u59cb\u8fdb\u884c\u4e32\u53e3\u901a\u4fe1\u4e86\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u5b89\u88c5pySerial\u5e93<\/p>\n<\/p>\n<p><p>\u8981\u5728Python\u4e2d\u52a0\u8f7d\u4e32\u53e3\u6a21\u5757\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5\u4e00\u4e2a\u540d\u4e3apySerial\u7684\u5e93\u3002pySerial\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684Python\u5e93\uff0c\u7528\u4e8e\u8bbf\u95ee\u4e32\u53e3\u8bbe\u5907\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528pip\u547d\u4ee4\u6765\u5b89\u88c5pySerial\u5e93\u3002\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install pyserial<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u6761\u547d\u4ee4\u4f1a\u4ecePython Package Index (PyPI)\u4e0b\u8f7d\u5e76\u5b89\u88c5pySerial\u5e93\u5230\u4f60\u7684Python\u73af\u5883\u4e2d\u3002\u786e\u4fdd\u4f60\u7684Python\u73af\u5883\u5df2\u7ecf\u6b63\u786e\u914d\u7f6e\u5e76\u4e14\u53ef\u4ee5\u8bbf\u95ee\u4e92\u8054\u7f51\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u5bfc\u5165serial\u6a21\u5757<\/p>\n<\/p>\n<p><p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u4f60\u53ef\u4ee5\u5728\u4f60\u7684Python\u811a\u672c\u4e2d\u5bfc\u5165serial\u6a21\u5757\u3002\u5bfc\u5165\u6a21\u5757\u540e\uff0c\u5c31\u53ef\u4ee5\u5f00\u59cb\u4f7f\u7528pySerial\u63d0\u4f9b\u7684\u63a5\u53e3\u4e0e\u4e32\u53e3\u8bbe\u5907\u8fdb\u884c\u901a\u4fe1\u3002\u5bfc\u5165serial\u6a21\u5757\u7684\u4ee3\u7801\u975e\u5e38\u7b80\u5355\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import serial<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5bfc\u5165\u5b8c\u6210\u540e\uff0c\u4f60\u5c31\u53ef\u4ee5\u4f7f\u7528serial\u6a21\u5757\u63d0\u4f9b\u7684\u5404\u79cd\u529f\u80fd\u4e86\uff0c\u6bd4\u5982\u6253\u5f00\u4e00\u4e2a\u4e32\u53e3\u3001\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e\u7b49\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u6253\u5f00\u548c\u914d\u7f6e\u4e32\u53e3<\/p>\n<\/p>\n<p><p>\u5bfc\u5165serial\u6a21\u5757\u540e\uff0c\u4e0b\u4e00\u6b65\u5c31\u662f\u6253\u5f00\u548c\u914d\u7f6e\u4e32\u53e3\u3002pySerial\u63d0\u4f9b\u4e86\u4e00\u4e2aSerial\u7c7b\uff0c\u7528\u4e8e\u8868\u793a\u4e00\u4e2a\u4e32\u53e3\u8fde\u63a5\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u521b\u5efaSerial\u7c7b\u7684\u5b9e\u4f8b\u6765\u6253\u5f00\u4e00\u4e2a\u4e32\u53e3\uff0c\u5e76\u6307\u5b9a\u4e32\u53e3\u7684\u540d\u79f0\u3001\u6ce2\u7279\u7387\u7b49\u53c2\u6570\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">ser = serial.Serial(&#39;COM3&#39;, 9600, timeout=1)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2aSerial\u7c7b\u7684\u5b9e\u4f8b\uff0c\u6253\u5f00\u4e86\u540d\u4e3a&#39;COM3&#39;\u7684\u4e32\u53e3\uff0c\u5e76\u5c06\u6ce2\u7279\u7387\u8bbe\u7f6e\u4e3a9600 bps\u3002timeout\u53c2\u6570\u6307\u5b9a\u4e86\u8bfb\u53d6\u64cd\u4f5c\u7684\u8d85\u65f6\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e<\/p>\n<\/p>\n<p><p>\u6253\u5f00\u5e76\u914d\u7f6e\u597d\u4e32\u53e3\u540e\uff0c\u4f60\u5c31\u53ef\u4ee5\u5f00\u59cb\u4e0e\u8bbe\u5907\u8fdb\u884c\u6570\u636e\u901a\u4fe1\u4e86\u3002pySerial\u63d0\u4f9b\u4e86read\u548cwrite\u65b9\u6cd5\uff0c\u5206\u522b\u7528\u4e8e\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e\u3002<\/p>\n<\/p>\n<ol>\n<li><strong>\u8bfb\u53d6\u6570\u636e<\/strong><\/li>\n<\/ol>\n<p><p>\u8981\u4ece\u4e32\u53e3\u8bfb\u53d6\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528Serial\u5bf9\u8c61\u7684read\u6216readline\u65b9\u6cd5\u3002read\u65b9\u6cd5\u8bfb\u53d6\u6307\u5b9a\u6570\u91cf\u7684\u5b57\u8282\uff0c\u800creadline\u65b9\u6cd5\u8bfb\u53d6\u4e00\u884c\u6570\u636e\uff0c\u76f4\u5230\u9047\u5230\u6362\u884c\u7b26\u6216\u8d85\u65f6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">data = ser.readline()<\/p>\n<p>print(data.decode(&#39;utf-8&#39;))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528readline\u65b9\u6cd5\u8bfb\u53d6\u4e00\u884c\u6570\u636e\uff0c\u7136\u540e\u4f7f\u7528decode\u65b9\u6cd5\u5c06\u5b57\u8282\u6570\u636e\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li><strong>\u5199\u5165\u6570\u636e<\/strong><\/li>\n<\/ol>\n<p><p>\u8981\u5411\u4e32\u53e3\u5199\u5165\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528Serial\u5bf9\u8c61\u7684write\u65b9\u6cd5\u3002write\u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32\u6216\u5b57\u8282\u6570\u636e\u5199\u5165\u5230\u4e32\u53e3\u8bbe\u5907\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">ser.write(b&#39;Hello, device!\\n&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u5b57\u7b26\u4e32&#39;Hello, device!\\n&#39;\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u636e\uff0c\u5e76\u5199\u5165\u5230\u4e32\u53e3\u8bbe\u5907\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u5173\u95ed\u4e32\u53e3<\/p>\n<\/p>\n<p><p>\u5b8c\u6210\u6570\u636e\u901a\u4fe1\u540e\uff0c\u8bb0\u5f97\u5173\u95ed\u4e32\u53e3\u4ee5\u91ca\u653e\u8d44\u6e90\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528Serial\u5bf9\u8c61\u7684close\u65b9\u6cd5\u6765\u5173\u95ed\u4e32\u53e3\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">ser.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5173\u95ed\u4e32\u53e3\u540e\uff0c\u4f60\u5c31\u65e0\u6cd5\u518d\u4e0e\u8be5\u8bbe\u5907\u8fdb\u884c\u901a\u4fe1\uff0c\u9664\u975e\u91cd\u65b0\u6253\u5f00\u4e32\u53e3\u3002<\/p>\n<\/p>\n<p><p>\u516d\u3001\u5904\u7406\u5f02\u5e38\u548c\u9519\u8bef<\/p>\n<\/p>\n<p><p>\u5728\u8fdb\u884c\u4e32\u53e3\u901a\u4fe1\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u5404\u79cd\u5f02\u5e38\u548c\u9519\u8bef\uff0c\u6bd4\u5982\u8bbe\u5907\u672a\u8fde\u63a5\u3001\u7aef\u53e3\u88ab\u5360\u7528\u7b49\u3002\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u7684\u5065\u58ee\u6027\uff0c\u5efa\u8bae\u5728\u8fdb\u884c\u4e32\u53e3\u64cd\u4f5c\u65f6\u4f7f\u7528try-except\u7ed3\u6784\u6765\u6355\u83b7\u548c\u5904\u7406\u53ef\u80fd\u7684\u5f02\u5e38\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">try:<\/p>\n<p>    ser = serial.Serial(&#39;COM3&#39;, 9600, timeout=1)<\/p>\n<p>    ser.write(b&#39;Hello, device!\\n&#39;)<\/p>\n<p>except serial.SerialException as e:<\/p>\n<p>    print(f&#39;Error: {e}&#39;)<\/p>\n<p>finally:<\/p>\n<p>    ser.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u5728\u51fa\u73b0\u9519\u8bef\u65f6\u8f93\u51fa\u9519\u8bef\u4fe1\u606f\uff0c\u5e76\u786e\u4fdd\u4e32\u53e3\u5728\u6700\u540e\u88ab\u5173\u95ed\u3002<\/p>\n<\/p>\n<p><p>\u4e03\u3001\u8de8\u5e73\u53f0\u517c\u5bb9\u6027<\/p>\n<\/p>\n<p><p>pySerial\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684\u5e93\uff0c\u652f\u6301Windows\u3001Linux\u548cMac OS\u7b49\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u3002\u5728\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u4e32\u53e3\u7684\u540d\u79f0\u53ef\u80fd\u4e0d\u540c\u3002\u5728Windows\u4e0a\uff0c\u4e32\u53e3\u901a\u5e38\u547d\u540d\u4e3aCOM1, COM2\u7b49\uff1b\u5728Linux\u4e0a\uff0c\u4e32\u53e3\u901a\u5e38\u4f4d\u4e8e\/dev\/ttyS0, \/dev\/ttyUSB0\u7b49\uff1b\u5728Mac OS\u4e0a\uff0c\u4e32\u53e3\u901a\u5e38\u4f4d\u4e8e\/dev\/tty.usbserial\u7b49\u3002\u786e\u4fdd\u5728\u4ee3\u7801\u4e2d\u4f7f\u7528\u6b63\u786e\u7684\u4e32\u53e3\u540d\u79f0\uff0c\u4ee5\u907f\u514d\u51fa\u73b0\u8fde\u63a5\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><p>\u516b\u3001\u8c03\u8bd5\u4e32\u53e3\u901a\u4fe1<\/p>\n<\/p>\n<p><p>\u5728\u8fdb\u884c\u4e32\u53e3\u901a\u4fe1\u65f6\uff0c\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u8c03\u8bd5\u5de5\u5177\u548c\u65b9\u6cd5\u6765\u67e5\u627e\u95ee\u9898\u7684\u539f\u56e0\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e32\u53e3\u76d1\u89c6\u5de5\u5177\uff08\u5982PuTTY\u3001Tera Term\u7b49\uff09\u6765\u89c2\u5bdf\u4e32\u53e3\u901a\u4fe1\u7684\u6570\u636e\u6d41\uff0c\u68c0\u67e5\u6570\u636e\u683c\u5f0f\u548c\u5185\u5bb9\u662f\u5426\u6b63\u786e\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0\u8c03\u8bd5\u4fe1\u606f\u548c\u65e5\u5fd7\u8f93\u51fa\u6765\u5e2e\u52a9\u5b9a\u4f4d\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><p>\u4e5d\u3001\u4f7f\u7528\u9ad8\u7ea7\u529f\u80fd<\/p>\n<\/p>\n<p><p>pySerial\u9664\u4e86\u63d0\u4f9b\u57fa\u672c\u7684\u4e32\u53e3\u901a\u4fe1\u529f\u80fd\u5916\uff0c\u8fd8\u652f\u6301\u4e00\u4e9b\u9ad8\u7ea7\u529f\u80fd\uff0c\u6bd4\u5982\u786c\u4ef6\u6d41\u63a7\u3001\u8f6f\u4ef6\u6d41\u63a7\u3001\u4e32\u53e3\u4e8b\u4ef6\u76d1\u63a7\u7b49\u3002\u901a\u8fc7\u8bbe\u7f6eSerial\u5bf9\u8c61\u7684\u5c5e\u6027\uff0c\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e9b\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6ertscts\u5c5e\u6027\u6765\u542f\u7528RTS\/CTS\u786c\u4ef6\u6d41\u63a7\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">ser = serial.Serial(&#39;COM3&#39;, 9600, timeout=1, rtscts=True)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5341\u3001\u96c6\u6210\u5230\u9879\u76ee\u4e2d<\/p>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u4f60\u53ef\u4ee5\u5c06\u4e32\u53e3\u901a\u4fe1\u4ee3\u7801\u96c6\u6210\u5230\u66f4\u590d\u6742\u7684\u7cfb\u7edf\u4e2d\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5c06\u4e32\u53e3\u901a\u4fe1\u4e0e\u56fe\u5f62\u7528\u6237\u754c\u9762\uff08GUI\uff09\u7ed3\u5408\uff0c\u63d0\u4f9b\u7528\u6237\u53cb\u597d\u7684\u64cd\u4f5c\u754c\u9762\uff1b\u6216\u8005\u5c06\u4e32\u53e3\u901a\u4fe1\u4e0e\u7f51\u7edc\u901a\u4fe1\u7ed3\u5408\uff0c\u5b9e\u73b0\u8fdc\u7a0b\u8bbe\u5907\u63a7\u5236\u3002\u901a\u8fc7\u7ed3\u5408Python\u7684\u5176\u4ed6\u5e93\u548c\u5de5\u5177\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4e30\u5bcc\u591a\u6837\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n<p><p>\u7efc\u4e0a\u6240\u8ff0\uff0c\u52a0\u8f7dPython\u4e32\u53e3\u6a21\u5757\u7684\u5173\u952e\u5728\u4e8e\u6b63\u786e\u5b89\u88c5\u548c\u914d\u7f6epySerial\u5e93\uff0c\u5e76\u719f\u7ec3\u4f7f\u7528\u5176\u63d0\u4f9b\u7684\u63a5\u53e3\u8fdb\u884c\u6570\u636e\u901a\u4fe1\u3002\u901a\u8fc7\u5408\u7406\u8bbe\u8ba1\u548c\u7f16\u5199\u4ee3\u7801\uff0c\u53ef\u4ee5\u5b9e\u73b0\u53ef\u9760\u3001\u9ad8\u6548\u7684\u4e32\u53e3\u901a\u4fe1\u5e94\u7528\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u5b89\u88c5\u4e32\u53e3\u6a21\u5757\uff1f<\/strong><br \/>\u5728Python\u4e2d\u4f7f\u7528\u4e32\u53e3\u6a21\u5757\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5<code>pyserial<\/code>\u5e93\u3002\u53ef\u4ee5\u901a\u8fc7pip\u547d\u4ee4\u5728\u7ec8\u7aef\u4e2d\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a  <\/p>\n<pre><code class=\"language-bash\">pip install pyserial\n<\/code><\/pre>\n<p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7<code>import serial<\/code>\u8bed\u53e5\u6765\u52a0\u8f7d\u8be5\u6a21\u5757\u3002<\/p>\n<p><strong>\u5728\u4f7f\u7528\u4e32\u53e3\u6a21\u5757\u65f6\uff0c\u5982\u4f55\u9009\u62e9\u6b63\u786e\u7684\u4e32\u53e3\uff1f<\/strong><br \/>\u5728\u4f7f\u7528\u4e32\u53e3\u6a21\u5757\u4e4b\u524d\uff0c\u786e\u4fdd\u4f60\u77e5\u9053\u7cfb\u7edf\u4e2d\u53ef\u7528\u7684\u4e32\u53e3\u3002\u53ef\u4ee5\u901a\u8fc7<code>pyserial<\/code>\u63d0\u4f9b\u7684<code>serial.tools.list_ports<\/code>\u6a21\u5757\u6765\u5217\u51fa\u6240\u6709\u53ef\u7528\u7684\u4e32\u53e3\u3002\u4ee5\u4e0b\u662f\u83b7\u53d6\u53ef\u7528\u4e32\u53e3\u7684\u793a\u4f8b\u4ee3\u7801\uff1a  <\/p>\n<pre><code class=\"language-python\">import serial.tools.list_ports\n\nports = serial.tools.list_ports.comports()\nfor port in ports:\n    print(port.device)\n<\/code><\/pre>\n<p>\u8fd9\u6837\u53ef\u4ee5\u5e2e\u52a9\u4f60\u9009\u62e9\u6b63\u786e\u7684\u4e32\u53e3\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n<p><strong>\u5982\u4f55\u5904\u7406\u4e32\u53e3\u901a\u4fe1\u4e2d\u7684\u9519\u8bef\uff1f<\/strong><br \/>\u5728\u4e32\u53e3\u901a\u4fe1\u4e2d\uff0c\u5e38\u89c1\u7684\u9519\u8bef\u5305\u62ec\u8bbe\u5907\u672a\u8fde\u63a5\u3001\u6743\u9650\u4e0d\u8db3\u548c\u6570\u636e\u683c\u5f0f\u9519\u8bef\u7b49\u3002\u4f7f\u7528<code>try-except<\/code>\u8bed\u53e5\u53ef\u4ee5\u6355\u83b7\u8fd9\u4e9b\u5f02\u5e38\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">import serial\n\ntry:\n    ser = serial.Serial(&#39;COM3&#39;, 9600)  # \u66ff\u6362\u4e3a\u4f60\u7684\u4e32\u53e3\u548c\u6ce2\u7279\u7387\n    data = ser.read(10)  # \u8bfb\u53d610\u4e2a\u5b57\u8282\nexcept serial.SerialException as e:\n    print(f&quot;\u4e32\u53e3\u9519\u8bef: {e}&quot;)\nexcept Exception as e:\n    print(f&quot;\u53d1\u751f\u9519\u8bef: {e}&quot;)\nfinally:\n    ser.close()  # \u786e\u4fdd\u4e32\u53e3\u5728\u7ed3\u675f\u65f6\u5173\u95ed\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4f60\u53ef\u4ee5\u6709\u6548\u5730\u5904\u7406\u4e32\u53e3\u901a\u4fe1\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u5404\u79cd\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u52a0\u8f7dPython\u4e32\u53e3\u6a21\u5757\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528pySerial\u5e93\u3001\u901a\u8fc7pip\u5b89\u88c5\u3001\u5bfc\u5165serial\u6a21\u5757\u3002 \u5176\u4e2d\uff0c\u4f7f\u7528 [&hellip;]","protected":false},"author":3,"featured_media":954338,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/954333"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=954333"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/954333\/revisions"}],"predecessor-version":[{"id":954343,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/954333\/revisions\/954343"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/954338"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=954333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=954333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=954333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}