{"id":9971,"date":"2023-11-28T21:22:33","date_gmt":"2023-11-28T13:22:33","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=9971"},"modified":"2023-11-30T19:25:16","modified_gmt":"2023-11-30T11:25:16","slug":"javascript-zhong-yin-shi-he-xian-shi-zhuan-huan-you-shen-me-qu-bie","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/javascript-zhong-yin-shi-he-xian-shi-zhuan-huan-you-shen-me-qu-bie\/","title":{"rendered":"JavaScript \u4e2d\u9690\u5f0f\u548c\u663e\u5f0f\u8f6c\u6362\u6709\u4ec0\u4e48\u533a\u522b\uff1f"},"content":{"rendered":"

\u5728 JavaScript \u4e2d\uff0c\u9690\u5f0f\u8f6c\u6362\u548c\u663e\u5f0f\u8f6c\u6362\u662f\u5904\u7406\u6570\u636e\u7c7b\u578b\u4e4b\u95f4\u8f6c\u6362\u7684\u4e24\u79cd\u65b9\u5f0f\u3002<\/p>\n

<\/span><\/a>\u9690\u5f0f\u8f6c\u6362\uff08Implicit Conversion\uff09\uff1a<\/h3>\n

\u9690\u5f0f\u8f6c\u6362\u662f JavaScript \u5728\u8fd0\u884c\u65f6\u81ea\u52a8\u6267\u884c\u7684\u7c7b\u578b\u8f6c\u6362\u3002\u5b83\u4f1a\u5728\u9700\u8981\u7684\u65f6\u5019\u81ea\u52a8\u5c06\u4e00\u4e2a\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u4e3a\u53e6\u4e00\u4e2a\u6570\u636e\u7c7b\u578b\uff0c\u901a\u5e38\u53d1\u751f\u5728\u4e0d\u540c\u7c7b\u578b\u4e4b\u95f4\u7684\u8fd0\u7b97\u6216\u6bd4\u8f83\u4e2d\u3002<\/p>\n

\u4f8b\u5982\uff1a<\/p>\n

let num = 5;\nlet str = 'Number is: ' + num; \/\/ \u9690\u5f0f\u5c06\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\nconsole.log(str); \/\/ \u8f93\u51fa\uff1a'Number is: 5'\n<\/code><\/pre>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u5c06\u6570\u5b57 num<\/code> \u9690\u5f0f\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u4ee5\u4fbf\u4e0e\u53e6\u4e00\u4e2a\u5b57\u7b26\u4e32\u8fde\u63a5\u3002<\/p>\n
<\/span><\/a>\u663e\u5f0f\u8f6c\u6362\uff08Explicit Conversion\uff09\uff1a<\/h3>\n
\u663e\u5f0f\u8f6c\u6362\u662f\u5f00\u53d1\u4eba\u5458\u6709\u610f\u8bc6\u5730\u5c06\u4e00\u4e2a\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u4e3a\u53e6\u4e00\u4e2a\u6570\u636e\u7c7b\u578b\u7684\u64cd\u4f5c\u3002\u5728 JavaScript \u4e2d\uff0c\u6709\u4e00\u4e9b\u5185\u7f6e\u7684\u51fd\u6570\u548c\u65b9\u6cd5\u53ef\u4ee5\u7528\u4e8e\u663e\u5f0f\u5730\u6267\u884c\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n
\u4f8b\u5982\uff1a<\/p>\n
let str = '10';\nlet num = parseInt(str); \/\/ \u4f7f\u7528 parseInt() \u663e\u5f0f\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6570\u5b57\nconsole.log(num); \/\/ \u8f93\u51fa\uff1a10\n<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528 parseInt()<\/code> \u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32 '10'<\/code> \u663e\u5f0f\u8f6c\u6362\u4e3a\u6570\u5b57 10<\/code>\u3002<\/p>\n
<\/span><\/a>\u533a\u522b\uff1a<\/h3>\n
    \n
  • \n
    \u89e6\u53d1\u6761\u4ef6\uff1a<\/strong><\/p>\n
      \n
    • \u9690\u5f0f\u8f6c\u6362\u662f\u7531 JavaScript \u5f15\u64ce\u5728\u9700\u8981\u65f6\u81ea\u52a8\u6267\u884c\u7684\uff0c\u6bd4\u5982\u5728\u4e0d\u540c\u7c7b\u578b\u4e4b\u95f4\u7684\u8fd0\u7b97\u6216\u6bd4\u8f83\u3002<\/li>\n
    • \u663e\u5f0f\u8f6c\u6362\u662f\u7531\u5f00\u53d1\u4eba\u5458\u6709\u610f\u8bc6\u5730\u6267\u884c\u7684\uff0c\u4f7f\u7528\u5185\u7f6e\u7684\u8f6c\u6362\u51fd\u6570\u6216\u65b9\u6cd5\u8fdb\u884c\u7c7b\u578b\u8f6c\u6362\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \n
      \u63a7\u5236\u6027\uff1a<\/strong><\/p>\n
        \n
      • \u9690\u5f0f\u8f6c\u6362\u662f\u7531 JavaScript \u5f15\u64ce\u63a7\u5236\u7684\uff0c\u53d1\u751f\u5728\u8fd0\u884c\u65f6\uff0c\u7a0b\u5e8f\u5458\u65e0\u6cd5\u5b8c\u5168\u63a7\u5236\u3002<\/li>\n
      • \u663e\u5f0f\u8f6c\u6362\u662f\u7531\u5f00\u53d1\u4eba\u5458\u663e\u5f0f\u7f16\u5199\u7684\u4ee3\u7801\u8fdb\u884c\u7c7b\u578b\u8f6c\u6362\uff0c\u53ef\u4ee5\u66f4\u6e05\u695a\u5730\u8868\u8fbe\u610f\u56fe\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
        \u638c\u63e1\u9690\u5f0f\u8f6c\u6362\u548c\u663e\u5f0f\u8f6c\u6362\u7684\u533a\u522b\u6709\u52a9\u4e8e\u907f\u514d\u51fa\u73b0\u610f\u6599\u4e4b\u5916\u7684\u7c7b\u578b\u8f6c\u6362\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u5728 JavaScript \u4e2d\uff0c\u9690\u5f0f\u8f6c\u6362\u548c\u663e\u5f0f\u8f6c\u6362\u662f\u5904\u7406\u6570\u636e\u7c7b\u578b\u4e4b\u95f4\u8f6c\u6362\u7684\u4e24\u79cd\u65b9\u5f0f\u3002 \u9690\u5f0f\u8f6c\u6362\uff08Implicit […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[],"class_list":["post-9971","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9971","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=9971"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9971\/revisions"}],"predecessor-version":[{"id":13687,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9971\/revisions\/13687"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=9971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=9971"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=9971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}