{"id":1188290,"date":"2025-01-15T20:15:29","date_gmt":"2025-01-15T12:15:29","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1188290.html"},"modified":"2025-01-15T20:15:31","modified_gmt":"2025-01-15T12:15:31","slug":"python%e5%a6%82%e4%bd%95%e8%a1%a8%e8%be%be%e6%9c%aa%e7%9f%a5%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1188290.html","title":{"rendered":"python\u5982\u4f55\u8868\u8fbe\u672a\u77e5\u6570"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25140628\/6b4fed3c-0d62-4b67-8554-4200bc179314.webp\" alt=\"python\u5982\u4f55\u8868\u8fbe\u672a\u77e5\u6570\" \/><\/p>\n<p><p> <strong>Python\u8868\u8fbe\u672a\u77e5\u6570\u7684\u65b9\u6cd5\u6709\u51e0\u79cd\uff0c\u4f7f\u7528\u53d8\u91cf\u3001\u4f7f\u7528\u5360\u4f4d\u7b26\u3001\u4f7f\u7528\u7b26\u53f7\u5e93\u7b49\u3002<\/strong> \u5176\u4e2d\uff0c\u4f7f\u7528\u53d8\u91cf\u662f\u6700\u5e38\u89c1\u548c\u57fa\u7840\u7684\u65b9\u6cd5\u3002\u53d8\u91cf\u662f\u4e00\u79cd\u901a\u8fc7\u540d\u79f0\u6307\u4ee3\u6570\u636e\u7684\u673a\u5236\uff0c\u8fd9\u4f7f\u5f97\u6211\u4eec\u80fd\u591f\u5728\u4ee3\u7801\u4e2d\u7075\u6d3b\u5730\u5904\u7406\u548c\u64cd\u4f5c\u6570\u636e\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u53d8\u91cf\u6765\u8868\u793a\u6570\u5b66\u65b9\u7a0b\u4e2d\u7684\u672a\u77e5\u6570\uff0c\u8fdb\u884c\u5404\u79cd\u8fd0\u7b97\u548c\u6c42\u89e3\u3002\u4ee5\u4e0b\u662f\u5bf9\u5982\u4f55\u4f7f\u7528\u53d8\u91cf\u8868\u793a\u672a\u77e5\u6570\u7684\u8be6\u7ec6\u63cf\u8ff0\u3002<\/p>\n<\/p>\n<p><h3>\u4f7f\u7528\u53d8\u91cf\u8868\u793a\u672a\u77e5\u6570<\/h3>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u53d8\u91cf\u901a\u8fc7\u8d4b\u503c\u8bed\u53e5\u521b\u5efa\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">x = 10<\/p>\n<p>y = 5<\/p>\n<p>z = x + y<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>x<\/code> \u548c <code>y<\/code> \u662f\u53d8\u91cf\uff0c<code>z<\/code> \u662f\u5b83\u4eec\u7684\u548c\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u66f4\u6539 <code>x<\/code> \u548c <code>y<\/code> \u7684\u503c\u6765\u6539\u53d8 <code>z<\/code> \u7684\u7ed3\u679c\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97\u53d8\u91cf\u975e\u5e38\u9002\u5408\u7528\u4e8e\u8868\u793a\u672a\u77e5\u6570\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u53d8\u91cf\u7684\u57fa\u7840\u77e5\u8bc6<\/h3>\n<\/p>\n<p><h4>1\u3001\u53d8\u91cf\u547d\u540d\u89c4\u5219<\/h4>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u53d8\u91cf\u540d\u5fc5\u987b\u9075\u5faa\u4e00\u5b9a\u7684\u89c4\u5219\uff1a<\/p>\n<\/p>\n<ul>\n<li>\u53d8\u91cf\u540d\u5fc5\u987b\u4ee5\u5b57\u6bcd\u6216\u4e0b\u5212\u7ebf\u5f00\u5934\u3002<\/li>\n<li>\u53d8\u91cf\u540d\u4e0d\u80fd\u4ee5\u6570\u5b57\u5f00\u5934\u3002<\/li>\n<li>\u53d8\u91cf\u540d\u53ea\u80fd\u5305\u542b\u5b57\u6bcd\u3001\u6570\u5b57\u548c\u4e0b\u5212\u7ebf\u3002<\/li>\n<li>\u53d8\u91cf\u540d\u533a\u5206\u5927\u5c0f\u5199\u3002<\/li>\n<\/ul>\n<p><p>\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">valid_variable = 10<\/p>\n<p>ValidVariable = 20<\/p>\n<p>_invalid_variable = 30  # \u4ee5 _ \u5f00\u5934\u4e5f\u662f\u5408\u6cd5\u7684<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2\u3001\u8d4b\u503c\u64cd\u4f5c<\/h4>\n<\/p>\n<p><p>\u8d4b\u503c\u64cd\u4f5c\u662f\u5c06\u4e00\u4e2a\u503c\u5b58\u50a8\u5230\u4e00\u4e2a\u53d8\u91cf\u4e2d\u3002Python\u4f7f\u7528\u7b49\u53f7 <code>=<\/code> \u8fdb\u884c\u8d4b\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">x = 10<\/p>\n<p>y = 5<\/p>\n<p>z = x + y<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u91cc\uff0c<code>x<\/code> \u88ab\u8d4b\u503c\u4e3a <code>10<\/code>\uff0c<code>y<\/code> \u88ab\u8d4b\u503c\u4e3a <code>5<\/code>\uff0c<code>z<\/code> \u88ab\u8d4b\u503c\u4e3a <code>x<\/code> \u548c <code>y<\/code> \u7684\u548c\uff0c\u5373 <code>15<\/code>\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528\u53d8\u91cf\u8fdb\u884c\u6570\u5b66\u8fd0\u7b97<\/h3>\n<\/p>\n<p><h4>1\u3001\u57fa\u672c\u8fd0\u7b97<\/h4>\n<\/p>\n<p><p>Python\u652f\u6301\u57fa\u672c\u7684\u6570\u5b66\u8fd0\u7b97\uff0c\u5305\u62ec\u52a0\u6cd5\u3001\u51cf\u6cd5\u3001\u4e58\u6cd5\u3001\u9664\u6cd5\u3001\u53d6\u6a21\u548c\u5e42\u8fd0\u7b97\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">a = 10<\/p>\n<p>b = 5<\/p>\n<p>sum_result = a + b      # \u52a0\u6cd5<\/p>\n<p>diff_result = a - b     # \u51cf\u6cd5<\/p>\n<p>prod_result = a * b     # \u4e58\u6cd5<\/p>\n<p>quot_result = a \/ b     # \u9664\u6cd5<\/p>\n<p>mod_result = a % b      # \u53d6\u6a21<\/p>\n<p>pow_result = a  b     # \u5e42\u8fd0\u7b97<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2\u3001\u590d\u6742\u8fd0\u7b97<\/h4>\n<\/p>\n<p><p>\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u6570\u5b66\u8fd0\u7b97\uff0c\u53ef\u4ee5\u4f7f\u7528Python\u7684\u5185\u7f6e\u5e93 <code>math<\/code>\uff0c\u4f8b\u5982\u8ba1\u7b97\u5e73\u65b9\u6839\u3001\u5bf9\u6570\u3001\u4e09\u89d2\u51fd\u6570\u7b49\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import math<\/p>\n<p>x = 16<\/p>\n<p>sqrt_result = math.sqrt(x)  # \u8ba1\u7b97\u5e73\u65b9\u6839<\/p>\n<p>y = 1<\/p>\n<p>log_result = math.log(y)    # \u8ba1\u7b97\u81ea\u7136\u5bf9\u6570<\/p>\n<p>angle = math.pi \/ 4<\/p>\n<p>sin_result = math.sin(angle)  # \u8ba1\u7b97\u6b63\u5f26\u503c<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528\u5360\u4f4d\u7b26\u8868\u793a\u672a\u77e5\u6570<\/h3>\n<\/p>\n<p><p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u7279\u522b\u662f\u5728\u5b57\u7b26\u4e32\u64cd\u4f5c\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u5360\u4f4d\u7b26\u8868\u793a\u672a\u77e5\u6570\u3002\u4f8b\u5982\uff0c\u5728\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>{}<\/code> \u4f5c\u4e3a\u5360\u4f4d\u7b26\uff0c\u7136\u540e\u4f7f\u7528 <code>format<\/code> \u65b9\u6cd5\u66ff\u6362\u5360\u4f4d\u7b26\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">name = &quot;Alice&quot;<\/p>\n<p>age = 30<\/p>\n<p>info = &quot;Name: {}, Age: {}&quot;.format(name, age)<\/p>\n<p>print(info)  # \u8f93\u51fa\uff1aName: Alice, Age: 30<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u5f97\u6211\u4eec\u53ef\u4ee5\u5728\u5b57\u7b26\u4e32\u4e2d\u7075\u6d3b\u5730\u63d2\u5165\u53d8\u91cf\u7684\u503c\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u4f7f\u7528SymPy\u5e93\u8868\u793a\u672a\u77e5\u6570<\/h3>\n<\/p>\n<p><p>\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u6570\u5b66\u8ba1\u7b97\u548c\u7b26\u53f7\u8fd0\u7b97\uff0c\u53ef\u4ee5\u4f7f\u7528Python\u7684SymPy\u5e93\u3002SymPy\u662f\u4e00\u4e2aPython\u7684\u7b26\u53f7\u6570\u5b66\u5e93\uff0c\u5b83\u53ef\u4ee5\u5904\u7406\u7b26\u53f7\u8fd0\u7b97\u3001\u65b9\u7a0b\u6c42\u89e3\u3001\u5fae\u79ef\u5206\u7b49\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u5b89\u88c5SymPy<\/h4>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u9700\u8981\u5b89\u88c5SymPy\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-shell\">pip install sympy<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2\u3001\u4f7f\u7528SymPy\u8868\u793a\u672a\u77e5\u6570<\/h4>\n<\/p>\n<p><p>\u5728SymPy\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>symbols<\/code> \u51fd\u6570\u5b9a\u4e49\u7b26\u53f7\u53d8\u91cf\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from sympy import symbols<\/p>\n<p>x, y = symbols(&#39;x y&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u91cc\uff0c<code>x<\/code> \u548c <code>y<\/code> \u662f\u7b26\u53f7\u53d8\u91cf\uff0c\u53ef\u4ee5\u7528\u4e8e\u8868\u793a\u6570\u5b66\u65b9\u7a0b\u4e2d\u7684\u672a\u77e5\u6570\u3002<\/p>\n<\/p>\n<p><h4>3\u3001\u7b26\u53f7\u8fd0\u7b97<\/h4>\n<\/p>\n<p><p>\u4f7f\u7528SymPy\uff0c\u53ef\u4ee5\u8fdb\u884c\u5404\u79cd\u7b26\u53f7\u8fd0\u7b97\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from sympy import symbols, Eq, solve<\/p>\n<p>x, y = symbols(&#39;x y&#39;)<\/p>\n<p>equation = Eq(x + y, 10)  # \u521b\u5efa\u4e00\u4e2a\u65b9\u7a0b x + y = 10<\/p>\n<p>solution = solve(equation, x)  # \u6c42\u89e3\u65b9\u7a0b\uff0c\u89e3\u51fa x \u7684\u503c<\/p>\n<p>print(solution)  # \u8f93\u51fa: [10 - y]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u521b\u5efa\u4e86\u4e00\u4e2a\u65b9\u7a0b <code>x + y = 10<\/code>\uff0c\u5e76\u6c42\u89e3\u5f97\u5230 <code>x<\/code> \u7684\u503c\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u4f7f\u7528NumPy\u5e93\u8fdb\u884c\u6570\u503c\u8ba1\u7b97<\/h3>\n<\/p>\n<p><p>\u867d\u7136NumPy\u5e93\u66f4\u591a\u7528\u4e8e\u6570\u503c\u8ba1\u7b97\uff0c\u4f46\u5b83\u4e5f\u53ef\u4ee5\u5728\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u8868\u793a\u548c\u5904\u7406\u672a\u77e5\u6570\u3002NumPy\u662fPython\u7684\u4e00\u4e2a\u5f00\u6e90\u5e93\uff0c\u7528\u4e8e\u652f\u6301\u5927\u91cf\u7684\u7ef4\u5ea6\u6570\u7ec4\u548c\u77e9\u9635\u8fd0\u7b97\uff0c\u6b64\u5916\u4e5f\u9488\u5bf9\u6570\u7ec4\u8fd0\u7b97\u63d0\u4f9b\u5927\u91cf\u7684\u6570\u5b66\u51fd\u6570\u5e93\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u5b89\u88c5NumPy<\/h4>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u9700\u8981\u5b89\u88c5NumPy\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-shell\">pip install numpy<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2\u3001NumPy\u7684\u57fa\u672c\u64cd\u4f5c<\/h4>\n<\/p>\n<p><p>\u4f7f\u7528NumPy\uff0c\u53ef\u4ee5\u8fdb\u884c\u5404\u79cd\u6570\u503c\u8ba1\u7b97\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import numpy as np<\/p>\n<p>a = np.array([1, 2, 3])<\/p>\n<p>b = np.array([4, 5, 6])<\/p>\n<p>sum_result = np.add(a, b)  # \u6570\u7ec4\u76f8\u52a0<\/p>\n<p>diff_result = np.subtract(a, b)  # \u6570\u7ec4\u76f8\u51cf<\/p>\n<p>prod_result = np.multiply(a, b)  # \u6570\u7ec4\u76f8\u4e58<\/p>\n<p>quot_result = np.divide(a, b)  # \u6570\u7ec4\u76f8\u9664<\/p>\n<p>print(sum_result)  # \u8f93\u51fa: [5 7 9]<\/p>\n<p>print(diff_result)  # \u8f93\u51fa: [-3 -3 -3]<\/p>\n<p>print(prod_result)  # \u8f93\u51fa: [4 10 18]<\/p>\n<p>print(quot_result)  # \u8f93\u51fa: [0.25 0.4  0.5 ]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>3\u3001\u89e3\u51b3\u7ebf\u6027\u65b9\u7a0b\u7ec4<\/h4>\n<\/p>\n<p><p>NumPy\u4e5f\u53ef\u4ee5\u7528\u4e8e\u89e3\u51b3\u7ebf\u6027\u65b9\u7a0b\u7ec4\u3002\u4f8b\u5982\uff0c\u6c42\u89e3\u4ee5\u4e0b\u7ebf\u6027\u65b9\u7a0b\u7ec4\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-shell\">2x + 3y = 5<\/p>\n<p>3x + y = 4<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u53ef\u4ee5\u4f7f\u7528NumPy\u7684 <code>linalg.solve<\/code> \u51fd\u6570\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import numpy as np<\/p>\n<p>A = np.array([[2, 3], [3, 1]])<\/p>\n<p>B = np.array([5, 4])<\/p>\n<p>solution = np.linalg.solve(A, B)<\/p>\n<p>print(solution)  # \u8f93\u51fa: [1. 1.]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u521b\u5efa\u4e86\u7cfb\u6570\u77e9\u9635 <code>A<\/code> \u548c\u5e38\u6570\u9879\u77e9\u9635 <code>B<\/code>\uff0c\u5e76\u4f7f\u7528 <code>linalg.solve<\/code> \u51fd\u6570\u6c42\u89e3\u5f97\u5230 <code>x<\/code> \u548c <code>y<\/code> \u7684\u503c\u3002<\/p>\n<\/p>\n<p><h3>\u516d\u3001\u4f7f\u7528SciPy\u5e93\u8fdb\u884c\u9ad8\u7ea7\u6570\u503c\u8ba1\u7b97<\/h3>\n<\/p>\n<p><p>SciPy\u662f\u57fa\u4e8eNumPy\u7684\u4e00\u4e2a\u9ad8\u7ea7\u79d1\u5b66\u8ba1\u7b97\u5e93\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u79d1\u5b66\u8ba1\u7b97\u529f\u80fd\uff0c\u4f8b\u5982\u4f18\u5316\u3001\u79ef\u5206\u3001\u63d2\u503c\u3001\u5085\u91cc\u53f6\u53d8\u6362\u3001\u4fe1\u53f7\u5904\u7406\u7b49\u3002SciPy\u4e5f\u662f\u4e00\u4e2a\u6709\u529b\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5904\u7406\u66f4\u590d\u6742\u7684\u6570\u5b66\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u5b89\u88c5SciPy<\/h4>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u9700\u8981\u5b89\u88c5SciPy\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-shell\">pip install scipy<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2\u3001SciPy\u7684\u57fa\u672c\u64cd\u4f5c<\/h4>\n<\/p>\n<p><p>\u4f7f\u7528SciPy\uff0c\u53ef\u4ee5\u8fdb\u884c\u5404\u79cd\u9ad8\u7ea7\u6570\u503c\u8ba1\u7b97\u3002\u4f8b\u5982\uff0c\u6c42\u89e3\u975e\u7ebf\u6027\u65b9\u7a0b\u7ec4\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from scipy.optimize import fsolve<\/p>\n<p>def equations(vars):<\/p>\n<p>    x, y = vars<\/p>\n<p>    eq1 = 2 * x + 3 * y - 5<\/p>\n<p>    eq2 = 3 * x + y - 4<\/p>\n<p>    return [eq1, eq2]<\/p>\n<p>solution = fsolve(equations, (0, 0))<\/p>\n<p>print(solution)  # \u8f93\u51fa: [1. 1.]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u51fd\u6570 <code>equations<\/code> \u8868\u793a\u65b9\u7a0b\u7ec4\uff0c\u5e76\u4f7f\u7528 <code>fsolve<\/code> \u51fd\u6570\u6c42\u89e3\u5f97\u5230 <code>x<\/code> \u548c <code>y<\/code> \u7684\u503c\u3002<\/p>\n<\/p>\n<p><h3>\u4e03\u3001\u4f7f\u7528Pandas\u5e93\u8fdb\u884c\u6570\u636e\u5206\u6790<\/h3>\n<\/p>\n<p><p>Pandas\u662fPython\u7684\u4e00\u4e2a\u6570\u636e\u5206\u6790\u5e93\uff0c\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6570\u636e\u7ed3\u6784\u548c\u6570\u636e\u5206\u6790\u5de5\u5177\u3002\u867d\u7136Pandas\u4e0d\u76f4\u63a5\u7528\u4e8e\u8868\u793a\u672a\u77e5\u6570\uff0c\u4f46\u5b83\u53ef\u4ee5\u5e2e\u52a9\u5904\u7406\u548c\u5206\u6790\u5305\u542b\u672a\u77e5\u6570\u7684\u6570\u636e\u96c6\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u5b89\u88c5Pandas<\/h4>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u9700\u8981\u5b89\u88c5Pandas\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-shell\">pip install pandas<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2\u3001Pandas\u7684\u57fa\u672c\u64cd\u4f5c<\/h4>\n<\/p>\n<p><p>\u4f7f\u7528Pandas\uff0c\u53ef\u4ee5\u8fdb\u884c\u6570\u636e\u8bfb\u53d6\u3001\u6e05\u6d17\u3001\u5206\u6790\u548c\u53ef\u89c6\u5316\u3002\u4f8b\u5982\uff0c\u8bfb\u53d6\u548c\u5904\u7406CSV\u6587\u4ef6\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<h2><strong>\u8bfb\u53d6CSV\u6587\u4ef6<\/strong><\/h2>\n<p>data = pd.read_csv(&#39;data.csv&#39;)<\/p>\n<h2><strong>\u67e5\u770b\u6570\u636e\u524d5\u884c<\/strong><\/h2>\n<p>print(data.head())<\/p>\n<h2><strong>\u8ba1\u7b97\u67d0\u5217\u7684\u5747\u503c<\/strong><\/h2>\n<p>mean_value = data[&#39;column_name&#39;].mean()<\/p>\n<p>print(mean_value)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528 <code>read_csv<\/code> \u51fd\u6570\u8bfb\u53d6CSV\u6587\u4ef6\uff0c\u5e76\u4f7f\u7528 <code>head<\/code> \u65b9\u6cd5\u67e5\u770b\u6570\u636e\u524d5\u884c\uff0c\u4f7f\u7528 <code>mean<\/code> \u65b9\u6cd5\u8ba1\u7b97\u67d0\u5217\u7684\u5747\u503c\u3002<\/p>\n<\/p>\n<p><h3>\u516b\u3001Python\u4e2d\u672a\u77e5\u6570\u7684\u5176\u4ed6\u8868\u793a\u65b9\u6cd5<\/h3>\n<\/p>\n<p><p>\u9664\u4e86\u4e0a\u8ff0\u65b9\u6cd5\uff0cPython\u4e2d\u8fd8\u6709\u5176\u4ed6\u8868\u793a\u672a\u77e5\u6570\u7684\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u5217\u8868\u3001\u5b57\u5178\u7b49\u6570\u636e\u7ed3\u6784\u6765\u8868\u793a\u548c\u5904\u7406\u672a\u77e5\u6570\u3002<\/p>\n<\/p>\n<p><h4>1\u3001\u4f7f\u7528\u5217\u8868<\/h4>\n<\/p>\n<p><p>\u5217\u8868\u662f\u4e00\u79cd\u6709\u5e8f\u7684\u96c6\u5408\uff0c\u53ef\u4ee5\u5b58\u50a8\u591a\u4e2a\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">unknowns = [10, 20, 30]<\/p>\n<p>print(unknowns[0])  # \u8f93\u51fa: 10<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2\u3001\u4f7f\u7528\u5b57\u5178<\/h4>\n<\/p>\n<p><p>\u5b57\u5178\u662f\u4e00\u79cd\u952e\u503c\u5bf9\u7684\u96c6\u5408\uff0c\u53ef\u4ee5\u7528\u4e8e\u8868\u793a\u548c\u5b58\u50a8\u672a\u77e5\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">unknowns = {&#39;x&#39;: 10, &#39;y&#39;: 20}<\/p>\n<p>print(unknowns[&#39;x&#39;])  # \u8f93\u51fa: 10<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>unknowns<\/code> \u662f\u4e00\u4e2a\u5b57\u5178\uff0c\u5b58\u50a8\u4e86 <code>x<\/code> \u548c <code>y<\/code> \u7684\u503c\u3002<\/p>\n<\/p>\n<p><h3>\u4e5d\u3001Python\u4e2d\u7684\u7b26\u53f7\u8ba1\u7b97\u6269\u5c55\u5e93<\/h3>\n<\/p>\n<p><p>\u9664\u4e86SymPy\uff0cPython\u4e2d\u8fd8\u6709\u5176\u4ed6\u7b26\u53f7\u8ba1\u7b97\u6269\u5c55\u5e93\u3002\u4f8b\u5982\uff0cSageMath\u548cSymEngine\u3002<\/p>\n<\/p>\n<p><h4>1\u3001SageMath<\/h4>\n<\/p>\n<p><p>SageMath\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u6570\u5b66\u8f6f\u4ef6\u7cfb\u7edf\uff0c\u5305\u542b\u4e86\u5f88\u591a\u6570\u5b66\u8f6f\u4ef6\u5305\u3002\u53ef\u4ee5\u7528\u4e8e\u4ee3\u6570\u3001\u51e0\u4f55\u3001\u6570\u8bba\u3001\u7ec4\u5408\u6570\u5b66\u3001\u6570\u503c\u8ba1\u7b97\u7b49\u9886\u57df\u3002<\/p>\n<\/p>\n<p><h4>2\u3001SymEngine<\/h4>\n<\/p>\n<p><p>SymEngine\u662f\u4e00\u4e2a\u5feb\u901f\u7684\u7b26\u53f7\u8ba1\u7b97\u5e93\uff0c\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u7b26\u53f7\u8fd0\u7b97\u529f\u80fd\u3002SymEngine\u53ef\u4ee5\u4e0eSymPy\u96c6\u6210\uff0c\u63d0\u4f9b\u66f4\u9ad8\u6548\u7684\u7b26\u53f7\u8ba1\u7b97\u3002<\/p>\n<\/p>\n<p><h3>\u5341\u3001Python\u4e2d\u7684<a href=\"https:\/\/docs.pingcode.com\/ask\/59192.html\" target=\"_blank\">\u673a\u5668\u5b66\u4e60<\/a>\u548c\u6df1\u5ea6\u5b66\u4e60\u5e93<\/h3>\n<\/p>\n<p><p>\u5728\u673a\u5668\u5b66\u4e60\u548c\u6df1\u5ea6\u5b66\u4e60\u4e2d\uff0c\u672a\u77e5\u6570\u901a\u5e38\u8868\u793a\u4e3a\u6a21\u578b\u53c2\u6570\u6216\u7279\u5f81\u3002Python\u4e2d\u6709\u5f88\u591a\u673a\u5668\u5b66\u4e60\u548c\u6df1\u5ea6\u5b66\u4e60\u5e93\uff0c\u4f8b\u5982Scikit-Learn\u3001TensorFlow\u3001Keras\u7b49\u3002<\/p>\n<\/p>\n<p><h4>1\u3001Scikit-Learn<\/h4>\n<\/p>\n<p><p>Scikit-Learn\u662f\u4e00\u4e2a\u7b80\u5355\u9ad8\u6548\u7684\u6570\u636e\u6316\u6398\u548c\u6570\u636e\u5206\u6790\u5de5\u5177\u5305\uff0c\u57fa\u4e8eNumPy\u3001SciPy\u548cMatplotlib\u3002\u53ef\u4ee5\u7528\u4e8e\u5206\u7c7b\u3001\u56de\u5f52\u3001\u805a\u7c7b\u3001\u964d\u7ef4\u7b49\u4efb\u52a1\u3002<\/p>\n<\/p>\n<p><h4>2\u3001TensorFlow\u548cKeras<\/h4>\n<\/p>\n<p><p>TensorFlow\u662f\u4e00\u4e2a\u7aef\u5230\u7aef\u5f00\u6e90\u673a\u5668\u5b66\u4e60\u5e73\u53f0\uff0cKeras\u662f\u4e00\u4e2a\u9ad8\u5c42\u795e\u7ecf\u7f51\u7edcAPI\uff0c\u8fd0\u884c\u5728TensorFlow\u4e4b\u4e0a\u3002\u53ef\u4ee5\u7528\u4e8e\u6784\u5efa\u548c\u8bad\u7ec3\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u3002<\/p>\n<\/p>\n<p><h3>\u5341\u4e00\u3001Python\u4e2d\u7684\u7edf\u8ba1\u5206\u6790\u5e93<\/h3>\n<\/p>\n<p><p>\u7edf\u8ba1\u5206\u6790\u5728\u5904\u7406\u672a\u77e5\u6570\u65f6\u4e5f\u975e\u5e38\u91cd\u8981\uff0cPython\u4e2d\u6709\u5f88\u591a\u7edf\u8ba1\u5206\u6790\u5e93\uff0c\u4f8b\u5982Statsmodels\u3001SciPy Stats\u7b49\u3002<\/p>\n<\/p>\n<p><h4>1\u3001Statsmodels<\/h4>\n<\/p>\n<p><p>Statsmodels\u662f\u4e00\u4e2a\u7528\u4e8e\u4f30\u8ba1\u548c\u63a8\u65ad\u7edf\u8ba1\u6a21\u578b\u7684Python\u6a21\u5757\u3002\u63d0\u4f9b\u4e86\u5404\u79cd\u7edf\u8ba1\u6a21\u578b\u7684\u5b9e\u73b0\u548c\u7edf\u8ba1\u6d4b\u8bd5\u5de5\u5177\u3002<\/p>\n<\/p>\n<p><h4>2\u3001SciPy Stats<\/h4>\n<\/p>\n<p><p>SciPy Stats\u662fSciPy\u5e93\u4e2d\u7684\u4e00\u4e2a\u5b50\u6a21\u5757\uff0c\u63d0\u4f9b\u4e86\u7edf\u8ba1\u5206\u5e03\u3001\u7edf\u8ba1\u6d4b\u8bd5\u3001\u56de\u5f52\u5206\u6790\u7b49\u529f\u80fd\u3002<\/p>\n<\/p>\n<p><h3>\u5341\u4e8c\u3001Python\u4e2d\u7684\u6570\u636e\u53ef\u89c6\u5316\u5e93<\/h3>\n<\/p>\n<p><p>\u6570\u636e\u53ef\u89c6\u5316\u5728\u8868\u793a\u548c\u7406\u89e3\u672a\u77e5\u6570\u65f6\u4e5f\u975e\u5e38\u91cd\u8981\uff0cPython\u4e2d\u6709\u5f88\u591a\u6570\u636e\u53ef\u89c6\u5316\u5e93\uff0c\u4f8b\u5982Matplotlib\u3001Seaborn\u3001Plotly\u7b49\u3002<\/p>\n<\/p>\n<p><h4>1\u3001Matplotlib<\/h4>\n<\/p>\n<p><p>Matplotlib\u662f\u4e00\u4e2aPython\u76842D\u7ed8\u56fe\u5e93\uff0c\u53ef\u4ee5\u751f\u6210\u5404\u79cd\u56fe\u8868\u3002\u4f8b\u5982\uff0c\u6298\u7ebf\u56fe\u3001\u67f1\u72b6\u56fe\u3001\u6563\u70b9\u56fe\u7b49\u3002<\/p>\n<\/p>\n<p><h4>2\u3001Seaborn<\/h4>\n<\/p>\n<p><p>Seaborn\u662f\u57fa\u4e8eMatplotlib\u7684\u4e00\u4e2a\u9ad8\u7ea7\u6570\u636e\u53ef\u89c6\u5316\u5e93\uff0c\u63d0\u4f9b\u4e86\u66f4\u7f8e\u89c2\u3001\u66f4\u7b80\u6d01\u7684\u7ed8\u56fe\u63a5\u53e3\u3002<\/p>\n<\/p>\n<p><h4>3\u3001Plotly<\/h4>\n<\/p>\n<p><p>Plotly\u662f\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u4ea4\u4e92\u5f0f\u56fe\u8868\u7684\u5f00\u6e90\u7ed8\u56fe\u5e93\uff0c\u53ef\u4ee5\u751f\u6210\u5404\u79cd\u4ea4\u4e92\u5f0f\u56fe\u8868\uff0c\u4f8b\u59823D\u56fe\u8868\u3001\u5730\u56fe\u7b49\u3002<\/p>\n<\/p>\n<p><h3>\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>Python\u63d0\u4f9b\u4e86\u591a\u79cd\u8868\u793a\u672a\u77e5\u6570\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u4f7f\u7528\u53d8\u91cf\u3001\u5360\u4f4d\u7b26\u3001SymPy\u5e93\u3001NumPy\u5e93\u3001SciPy\u5e93\u3001Pandas\u5e93\u7b49\u3002\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u5e94\u7528\u573a\u666f\uff0c\u53ef\u4ee5\u9009\u62e9\u9002\u5408\u7684\u65b9\u6cd5\u6765\u8868\u793a\u548c\u5904\u7406\u672a\u77e5\u6570\u3002\u6b64\u5916\uff0cPython\u4e2d\u8fd8\u6709\u5f88\u591a\u6269\u5c55\u5e93\u548c\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u8fdb\u884c\u7b26\u53f7\u8ba1\u7b97\u3001\u6570\u503c\u8ba1\u7b97\u3001\u6570\u636e\u5206\u6790\u3001\u673a\u5668\u5b66\u4e60\u3001\u7edf\u8ba1\u5206\u6790\u3001\u6570\u636e\u53ef\u89c6\u5316\u7b49\u3002\u901a\u8fc7\u7075\u6d3b\u8fd0\u7528\u8fd9\u4e9b\u5de5\u5177\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u89e3\u51b3\u5404\u79cd\u6570\u5b66\u548c\u6570\u636e\u5904\u7406\u95ee\u9898\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5728Python\u4e2d\u5982\u4f55\u5b9a\u4e49\u548c\u4f7f\u7528\u672a\u77e5\u6570\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u672a\u77e5\u6570\u901a\u5e38\u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u6765\u8868\u793a\u3002\u60a8\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf\u5e76\u7ed9\u5b83\u8d4b\u503c\uff0c\u6216\u5728\u9700\u8981\u7684\u65f6\u5019\u5c06\u5176\u8bbe\u7f6e\u4e3a<code>None<\/code>\uff0c\u4ee5\u8868\u793a\u8be5\u503c\u5c1a\u672a\u786e\u5b9a\u3002\u4f8b\u5982\uff1a  <\/p>\n<pre><code class=\"language-python\">x = None  # \u5b9a\u4e49\u672a\u77e5\u6570\n# \u540e\u7eed\u53ef\u4ee5\u6839\u636e\u9700\u8981\u7ed9x\u8d4b\u503c\n<\/code><\/pre>\n<p>\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\uff0c\u60a8\u53ef\u4ee5\u5728\u4ee3\u7801\u4e2d\u7075\u6d3b\u5730\u5904\u7406\u4e0d\u540c\u7684\u60c5\u51b5\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u5904\u7406\u7b26\u53f7\u8ba1\u7b97\u4ee5\u8868\u8fbe\u672a\u77e5\u6570\uff1f<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528<code>sympy<\/code>\u5e93\u6765\u8fdb\u884c\u7b26\u53f7\u8ba1\u7b97\u3002\u8be5\u5e93\u5141\u8bb8\u60a8\u5b9a\u4e49\u7b26\u53f7\u53d8\u91cf\u5e76\u8fdb\u884c\u4ee3\u6570\u8fd0\u7b97\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a  <\/p>\n<pre><code class=\"language-python\">from sympy import symbols, Eq, solve\n\nx = symbols(&#39;x&#39;)  # \u5b9a\u4e49\u672a\u77e5\u6570x\nequation = Eq(x + 2, 5)  # \u521b\u5efa\u65b9\u7a0b\nsolution = solve(equation, x)  # \u89e3\u65b9\u7a0b\nprint(solution)  # \u8f93\u51fa\u89e3\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u5904\u7406\u5305\u542b\u672a\u77e5\u6570\u7684\u65b9\u7a0b\u3002<\/p>\n<p><strong>Python\u4e2d\u5982\u4f55\u4f7f\u7528\u51fd\u6570\u6765\u8868\u793a\u672a\u77e5\u6570\u7684\u503c\uff1f<\/strong><br \/>\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u51fd\u6570\uff0c\u63a5\u53d7\u672a\u77e5\u6570\u4f5c\u4e3a\u53c2\u6570\u5e76\u8fd4\u56de\u76f8\u5173\u8ba1\u7b97\u7ed3\u679c\u3002\u4f8b\u5982\uff1a  <\/p>\n<pre><code class=\"language-python\">def calculate_area(radius):\n    pi = 3.14159\n    return pi * (radius ** 2)\n\narea = calculate_area(5)  # \u8f93\u5165\u672a\u77e5\u65705\u4f5c\u4e3a\u534a\u5f84\nprint(area)  # \u8f93\u51fa\u8ba1\u7b97\u7ed3\u679c\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u5f97\u4ee3\u7801\u66f4\u52a0\u7075\u6d3b\uff0c\u65b9\u4fbf\u5728\u4e0d\u540c\u60c5\u51b5\u4e0b\u4f7f\u7528\u4e0d\u540c\u7684\u672a\u77e5\u6570\u503c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u8868\u8fbe\u672a\u77e5\u6570\u7684\u65b9\u6cd5\u6709\u51e0\u79cd\uff0c\u4f7f\u7528\u53d8\u91cf\u3001\u4f7f\u7528\u5360\u4f4d\u7b26\u3001\u4f7f\u7528\u7b26\u53f7\u5e93\u7b49\u3002 \u5176\u4e2d\uff0c\u4f7f\u7528\u53d8\u91cf\u662f\u6700\u5e38\u89c1\u548c\u57fa\u7840\u7684\u65b9\u6cd5\u3002 [&hellip;]","protected":false},"author":3,"featured_media":1188298,"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\/1188290"}],"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=1188290"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1188290\/revisions"}],"predecessor-version":[{"id":1188299,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1188290\/revisions\/1188299"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1188298"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1188290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1188290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1188290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}