{"id":122,"date":"2021-06-23T18:51:31","date_gmt":"2021-06-23T10:51:31","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/python\/?p=122"},"modified":"2021-06-23T18:51:31","modified_gmt":"2021-06-23T10:51:31","slug":"python%e7%9a%84eval%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/python\/post-122.html","title":{"rendered":"python\u7684eval\u51fd\u6570"},"content":{"rendered":"\n<p>python\u4e2d\uff0ceval\u662f\u4e00\u4e2a\u5c06<strong>\u5b57\u7b26\u4e32<\/strong>\u8f6c\u6362\u4e3a<strong>\u8868\u8fbe\u5f0f<\/strong>\u5e76\u8ba1\u7b97\u7684\u51fd\u6570<\/p>\n\n\n\n<p>eval\u4f7f\u7528\u8f83\u591a\uff0c\u4f8b\u5982<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#\u7b80\u5355\u7684\u6570\u5b66\u8ba1\u7b97\neval(\"1+1\")\n\n#\u5b57\u7b26\u4e32\u91cd\u590d\neval(\"'*' * 10\")\n\n#\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5217\u8868\ntype(eval(\"&#91;1,2,3,4,5]\"))\n\n#\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u5178\ntype(eval(\"{'name':'xiaoming','age':18}\"))<\/code><\/pre>\n\n\n\n<p><strong>\u8981\u975e\u5e38\u8c28\u614e\u7684\u4f7f\u7528 eval \u51fd\u6570\uff0c\u5343\u4e07\u4e0d\u8981\u7ed9\u7528\u6237\u8f93\u5165<\/strong>\uff0c\u5982\u679c\u628a\u7528\u6237\u8f93\u5165\u7684\u5b57\u7b26\u4e32\u76f4\u63a5\u8f6c\u6362\u4e3aeval\uff0c\u5219\u5c06\u662f\u4e00\u79cd\u707e\u96be<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>print(eval(input(\"\u8bf7\u8f93\u5165\u4e00\u4e2a\u7b97\u672f\u8fd0\u7b97\")))<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u7528\u6237\u6b63\u5e38\u8f93\u5165\uff0c\u6bd4\u5982<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u8bf7\u8f93\u5165\u4e00\u4e2a\u7b97\u672f\u8fd0\u7b971+1\n2<\/code><\/pre>\n\n\n\n<p>\u53ef\u82e5\u8f93\u5165\u7684\u662f\u547d\u4ee4\uff0c\u4f8b\u5982\u524d\u9762\u5b66\u4e60\u7684os\u6a21\u5757<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>__import__('os').system('rm test.txt')<\/code><\/pre>\n\n\n\n<p>\u5b83\u7b49\u4ef7\u4e8e\u4ee5\u4e0b\u4ee3\u7801\uff0c\u5c06\u5220\u9664test.txt<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import os\nos.system(\"rm test.txt\")<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>python\u4e2d\uff0ceval\u662f\u4e00\u4e2a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u8868\u8fbe\u5f0f\u5e76\u8ba1\u7b97\u7684\u51fd\u6570 eval\u4f7f\u7528\u8f83\u591a\uff0c\u4f8b\u5982 \u8981\u975e\u5e38\u8c28\u614e\u7684\u4f7f\u7528 ev&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/python\/post-122.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">python\u7684eval\u51fd\u6570<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[12],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/122"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/comments?post=122"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/122\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/media?parent=122"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/categories?post=122"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/tags?post=122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}