{"id":961101,"date":"2024-12-27T03:55:37","date_gmt":"2024-12-26T19:55:37","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/961101.html"},"modified":"2024-12-27T03:55:40","modified_gmt":"2024-12-26T19:55:40","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e8%be%93%e5%87%ba%e6%8c%87%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/961101.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u8f93\u51fa\u6307\u6570"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u8f93\u51fa\u6307\u6570\"<\/p>\n

\u5728Python\u4e2d\uff0c\u8f93\u51fa\u6307\u6570\u7684\u51e0\u79cd\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528\u5e42\u8fd0\u7b97\u7b26\uff08<\/strong>\uff09\u3001math\u5e93\u7684pow\u51fd\u6570\u3001numpy\u5e93\u7684power\u51fd\u6570\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u8f93\u51fa\u7b49\u3002 \u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u5e42\u8fd0\u7b97\u7b26\uff08<\/strong>\uff09\uff0c\u5b83\u63d0\u4f9b\u4e86\u6700\u76f4\u89c2\u548c\u7b80\u5355\u7684\u6307\u6570\u8fd0\u7b97\u65b9\u5f0f\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\u53ca\u5176\u9002\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528\u5e42\u8fd0\u7b97\u7b26\uff08\uff09<\/p>\n<\/p>\n

\u5e42\u8fd0\u7b97\u7b26\u662fPython\u4e2d\u6700\u7b80\u5355\u76f4\u63a5\u7684\u6307\u6570\u8fd0\u7b97\u65b9\u6cd5\u3002\u4f7f\u7528\u53cc\u661f\u53f7\uff08\uff09\u53ef\u4ee5\u8ba1\u7b97\u4e00\u4e2a\u6570\u5b57\u7684\u6307\u6570\u3002\u4f8b\u5982\uff0c\u8ba1\u7b972\u76843\u6b21\u65b9\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n

result = 2  3<\/p>\n
print(result)  # \u8f93\u51fa8<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5e42\u8fd0\u7b97\u7b26\u7684\u4f18\u70b9\u5728\u4e8e\u5176\u76f4\u89c2\u548c\u7b80\u6d01\uff0c\u9002\u7528\u4e8e\u7b80\u5355\u7684\u6307\u6570\u8fd0\u7b97\uff0c\u662f\u6700\u5e38\u7528\u7684\u6307\u6570\u8ba1\u7b97\u65b9\u6cd5<\/strong>\u3002\u5b83\u80fd\u591f\u5feb\u901f\u8fdb\u884c\u8ba1\u7b97\uff0c\u5e76\u4e14\u9002\u7528\u4e8e\u6574\u6570\u548c\u6d6e\u70b9\u6570\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528math\u5e93\u7684pow\u51fd\u6570<\/p>\n<\/p>\n
Python\u5185\u7f6e\u7684math\u5e93\u63d0\u4f9b\u4e86pow\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u4e8e\u6307\u6570\u8fd0\u7b97\u3002math.pow\u51fd\u6570\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff0c\u5206\u522b\u662f\u5e95\u6570\u548c\u6307\u6570\uff0c\u8fd4\u56de\u5e95\u6570\u7684\u6307\u6570\u6b21\u5e42\u3002<\/p>\n<\/p>\n
import math<\/p>\n
result = math.pow(2, 3)<\/p>\n
print(result)  # \u8f93\u51fa8.0<\/p>\n
<\/code><\/pre>\n<\/p>\n
math.pow\u51fd\u6570\u7684\u4e00\u4e2a\u7279\u70b9\u662f\u5b83\u603b\u662f\u8fd4\u56de\u6d6e\u70b9\u6570<\/strong>\uff0c\u5373\u4f7f\u5e95\u6570\u548c\u6307\u6570\u90fd\u662f\u6574\u6570\u3002\u8fd9\u5728\u9700\u8981\u6d6e\u70b9\u6570\u7ed3\u679c\u7684\u60c5\u51b5\u4e0b\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528numpy\u5e93\u7684power\u51fd\u6570<\/p>\n<\/p>\n
\u5bf9\u4e8e\u9700\u8981\u8fdb\u884c\u5927\u91cf\u79d1\u5b66\u8ba1\u7b97\u7684\u573a\u666f\uff0cnumpy\u5e93\u63d0\u4f9b\u4e86\u66f4\u4e3a\u9ad8\u6548\u7684power\u51fd\u6570\u3002numpy.power\u51fd\u6570\u4e0d\u4ec5\u53ef\u4ee5\u5904\u7406\u5355\u4e2a\u6570\u5b57\uff0c\u8fd8\u53ef\u4ee5\u5bf9\u6570\u7ec4\u8fdb\u884c\u5143\u7d20\u7ea7\u7684\u6307\u6570\u8fd0\u7b97\u3002<\/p>\n<\/p>\n
import numpy as np<\/p>\n
array = np.array([2, 3, 4])<\/p>\n
result = np.power(array, 3)<\/p>\n
print(result)  # \u8f93\u51fa [ 8 27 64]<\/p>\n
<\/code><\/pre>\n<\/p>\n
numpy.power\u51fd\u6570\u7684\u5f3a\u5927\u4e4b\u5904\u5728\u4e8e\u5176\u5bf9\u6570\u7ec4\u7684\u652f\u6301<\/strong>\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5bf9\u5927\u91cf\u6570\u636e\u8fdb\u884c\u6307\u6570\u8fd0\u7b97\u7684\u573a\u666f\uff0c\u5982\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5206\u6790\u7b49\u3002<\/p>\n<\/p>\n
\u56db\u3001\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u8f93\u51fa\u6307\u6570<\/p>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u6765\u8f93\u51fa\u6307\u6570\u5f62\u5f0f\u7684\u7ed3\u679c\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u4ee5\u79d1\u5b66\u8ba1\u6570\u6cd5\u5c55\u793a\u7ed3\u679c\u7684\u573a\u5408\u975e\u5e38\u6709\u7528\u3002\u4f7f\u7528Python\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u529f\u80fd\uff0c\u53ef\u4ee5\u6307\u5b9a\u8f93\u51fa\u7684\u683c\u5f0f\u3002<\/p>\n<\/p>\n
number = 1000000<\/p>\n
formatted_number = "{:.2e}".format(number)<\/p>\n
print(formatted_number)  # \u8f93\u51fa1.00e+06<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u8f93\u51fa\u6307\u6570\u7684\u4f18\u52bf\u5728\u4e8e\u5176\u7075\u6d3b\u6027<\/strong>\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u8c03\u6574\u5c0f\u6570\u70b9\u540e\u7684\u4f4d\u6570\u548c\u6307\u6570\u5f62\u5f0f\uff0c\u9002\u5408\u7528\u4e8e\u62a5\u544a\u751f\u6210\u548c\u7ed3\u679c\u5c55\u793a\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u6bd4\u8f83\u4e0e\u9009\u62e9<\/p>\n<\/p>\n
    \n
  1. \n
    \u7b80\u5355\u6307\u6570\u8fd0\u7b97<\/strong>\uff1a\u5982\u679c\u53ea\u662f\u9700\u8981\u8fdb\u884c\u7b80\u5355\u7684\u6307\u6570\u8fd0\u7b97\uff0c\u4f7f\u7528\u5e42\u8fd0\u7b97\u7b26\uff08\uff09\u662f\u6700\u7b80\u5355\u76f4\u63a5\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n<\/li>\n
  2. \n
    \u9700\u8981\u6d6e\u70b9\u6570\u7ed3\u679c<\/strong>\uff1a\u5f53\u9700\u8981\u6d6e\u70b9\u6570\u7ed3\u679c\u65f6\uff0c\u53ef\u4ee5\u9009\u62e9math.pow\u51fd\u6570\u3002<\/p>\n<\/p>\n<\/li>\n
  3. \n
    \u6570\u7ec4\u548c\u5927\u89c4\u6a21\u8ba1\u7b97<\/strong>\uff1a\u5bf9\u4e8e\u6570\u7ec4\u8fd0\u7b97\u6216\u5927\u89c4\u6a21\u79d1\u5b66\u8ba1\u7b97\uff0cnumpy.power\u51fd\u6570\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<\/p>\n<\/li>\n
  4. \n
    \u683c\u5f0f\u5316\u8f93\u51fa<\/strong>\uff1a\u5f53\u9700\u8981\u4ee5\u79d1\u5b66\u8ba1\u6570\u6cd5\u6216\u7279\u5b9a\u683c\u5f0f\u5c55\u793a\u7ed3\u679c\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
    \u516d\u3001\u5e94\u7528\u5b9e\u4f8b<\/p>\n<\/p>\n
      \n
    1. \n
      \u79d1\u5b66\u8ba1\u7b97\u4e2d\u7684\u5e94\u7528<\/strong>\uff1a\u5728\u79d1\u5b66\u8ba1\u7b97\u4e2d\uff0c\u7ecf\u5e38\u9700\u8981\u8fdb\u884c\u590d\u6742\u7684\u6307\u6570\u8fd0\u7b97\u3002\u4f8b\u5982\uff0c\u5728\u7269\u7406\u5b66\u4e2d\u8ba1\u7b97\u8870\u51cf\u8fc7\u7a0b\uff0c\u53ef\u4ee5\u4f7f\u7528numpy.power\u6765\u5904\u7406\u5927\u91cf\u6570\u636e\u3002<\/p>\n<\/p>\n<\/li>\n
    2. \n
      \u91d1\u878d\u8ba1\u7b97\u4e2d\u7684\u5e94\u7528<\/strong>\uff1a\u5728\u91d1\u878d\u8ba1\u7b97\u4e2d\uff0c\u6307\u6570\u8fd0\u7b97\u7528\u4e8e\u8ba1\u7b97\u590d\u5229\u3002\u4f8b\u5982\uff0c\u8ba1\u7b97\u672c\u91d1P\u5728\u5229\u7387r\u4e0b\u7ecf\u8fc7n\u5e74\u7684\u590d\u5229\uff0c\u53ef\u4ee5\u4f7f\u7528\u516c\u5f0fP * (1 + r)  n\u3002<\/p>\n<\/p>\n<\/li>\n
    3. \n
      \u6570\u636e\u5206\u6790\u4e2d\u7684\u5e94\u7528<\/strong>\uff1a\u5728\u6570\u636e\u5206\u6790\u4e2d\uff0c\u7ecf\u5e38\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u89c4\u8303\u5316\u6216\u7f29\u653e\uff0c\u8fd9\u65f6\u4e5f\u4f1a\u7528\u5230\u6307\u6570\u8fd0\u7b97\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
      \u4e03\u3001\u6700\u4f73\u5b9e\u8df5<\/p>\n<\/p>\n
        \n
      1. \n
        \u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5<\/strong>\uff1a\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6548\u7387\u3002<\/p>\n<\/p>\n<\/li>\n
      2. \n
        \u6ce8\u610f\u6570\u636e\u7c7b\u578b<\/strong>\uff1a\u7279\u522b\u662f\u5728\u4f7f\u7528math.pow\u65f6\uff0c\u6ce8\u610f\u7ed3\u679c\u6570\u636e\u7c7b\u578b\u7684\u53d8\u5316\uff0c\u4ee5\u907f\u514d\u6f5c\u5728\u7684\u7cbe\u5ea6\u95ee\u9898\u3002<\/p>\n<\/p>\n<\/li>\n
      3. \n
        \u4f18\u5316\u8ba1\u7b97\u6027\u80fd<\/strong>\uff1a\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\uff0c\u4f18\u5148\u8003\u8651\u4f7f\u7528numpy\u5e93\uff0c\u4ee5\u5145\u5206\u5229\u7528\u5176\u9ad8\u6548\u7684\u8ba1\u7b97\u80fd\u529b\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
        \u901a\u8fc7\u4ee5\u4e0a\u5185\u5bb9\u7684\u5b66\u4e60\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528Python\u4e2d\u4e0d\u540c\u7684\u6307\u6570\u8fd0\u7b97\u65b9\u6cd5\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u5f0f\u6765\u6ee1\u8db3\u5b9e\u9645\u5f00\u53d1\u4e2d\u7684\u9700\u6c42\u3002<\/p>\n<\/p>\n
        \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
         \u5728Python\u4e2d\u5982\u4f55\u4f7f\u7528\u6307\u6570\u8fd0\u7b97\u7b26\uff1f<\/strong>
        \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u53cc\u661f\u53f7\uff08\uff09\u6765\u8fdb\u884c\u6307\u6570\u8fd0\u7b97\u3002\u4f8b\u5982\uff0c\u8868\u8fbe\u5f0f2 <\/strong> 3<\/code>\u5c06\u8fd4\u56de8\uff0c\u56e0\u4e3a2\u76843\u6b21\u65b9\u7b49\u4e8e8\u3002\u8fd9\u79cd\u65b9\u5f0f\u7b80\u5355\u76f4\u89c2\uff0c\u9002\u5408\u8fdb\u884c\u57fa\u672c\u7684\u6307\u6570\u8ba1\u7b97\u3002<\/p>\n
        Python\u4e2d\u6709\u6ca1\u6709\u5185\u7f6e\u51fd\u6570\u53ef\u4ee5\u8ba1\u7b97\u6307\u6570\uff1f<\/strong>
        \u662f\u7684\uff0cPython\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5185\u7f6e\u7684pow()<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u4e8e\u8ba1\u7b97\u6307\u6570\u3002\u4f7f\u7528\u65b9\u6cd5\u662fpow(base, exp)<\/code>\uff0c\u4f8b\u5982\uff0cpow(2, 3)<\/code>\u4e5f\u4f1a\u8fd4\u56de8\u3002\u6b64\u5916\uff0cpow()<\/code>\u51fd\u6570\u8fd8\u53ef\u4ee5\u63a5\u53d7\u7b2c\u4e09\u4e2a\u53c2\u6570\uff0c\u7528\u4e8e\u8ba1\u7b97\u6a21\uff0c\u5373pow(base, exp, mod)<\/code>\uff0c\u8fd9\u5728\u5904\u7406\u5927\u6570\u8fd0\u7b97\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n
        \u5982\u4f55\u5728Python\u4e2d\u8f93\u51fa\u6d6e\u70b9\u6570\u7684\u6307\u6570\u8868\u793a\u6cd5\uff1f<\/strong>
        \u8981\u5728Python\u4e2d\u8f93\u51fa\u6d6e\u70b9\u6570\u7684\u6307\u6570\u8868\u793a\u6cd5\uff0c\u53ef\u4ee5\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u6216format()<\/code>\u51fd\u6570\u3002\u4f8b\u5982\uff0c"{:.2e}".format(12345)<\/code>\u5c06\u8f93\u51fa1.23e+04<\/code>\uff0c\u8fd9\u8868\u793a12345\u4ee5\u79d1\u5b66\u8ba1\u6570\u6cd5\u7684\u5f62\u5f0f\u5448\u73b0\u3002\u4f7f\u7528\u8fd9\u79cd\u683c\u5f0f\u5316\u65b9\u5f0f\u53ef\u4ee5\u65b9\u4fbf\u5730\u663e\u793a\u5927\u6570\u548c\u5c0f\u6570\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u8f93\u51fa\u6307\u6570\u7684\u51e0\u79cd\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528\u5e42\u8fd0\u7b97\u7b26\uff08\uff09\u3001math\u5e93\u7684pow\u51fd\u6570\u3001numpy\u5e93\u7684power\u51fd […]","protected":false},"author":3,"featured_media":961111,"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\/961101"}],"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=961101"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/961101\/revisions"}],"predecessor-version":[{"id":961115,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/961101\/revisions\/961115"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/961111"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=961101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=961101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=961101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}