JavaScript \u662f\u4e00\u7a2e\u904b\u884c\u5728\u7db2\u9801\u4e0a\u7684\u8173\u672c\u8a9e\u8a00\uff0c\u7528\u65bc\u8b93\u7db2\u9801\u8b8a\u5f97\u66f4\u5177\u4e92\u52d5\u6027\u3002\u900f\u904e JavaScript\uff0c\u6211\u5011\u53ef\u4ee5\u64cd\u4f5c\u7db2\u9801\u7684\u5167\u5bb9\u3001\u6a23\u5f0f\uff0c\u4e26\u8655\u7406\u4f7f\u7528\u8005\u7684\u8f38\u5165\u3002<\/p>\n
\u5728 HTML \u6587\u4ef6\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u900f\u904e \u9019\u6bb5\u7a0b\u5f0f\u6703\u5728\u7db2\u9801\u6253\u958b\u6642\u5f48\u51fa\u4e00\u500b\u5c0d\u8a71\u6846\uff0c\u986f\u793a "Hello, World!"\u3002<\/p>\n JavaScript \u4e2d\u7684\u8b8a\u6578\u7528\u4f86\u5132\u5b58\u8cc7\u6599\uff0c\u53ef\u4ee5\u4f7f\u7528 JavaScript \u652f\u63f4\u6578\u5b78\u904b\u7b97\u7b26\u865f\uff0c\u50cf\u662f\u52a0\u6cd5\u3001\u6e1b\u6cd5\u3001\u4e58\u6cd5\u3001\u9664\u6cd5\u7b49\u3002<\/p>\n \u689d\u4ef6\u5224\u65b7\u7528\u4f86\u57f7\u884c\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u7684\u7a0b\u5f0f\u78bc\u3002\u4f7f\u7528 \u8ff4\u5708\u7528\u4f86\u91cd\u8907\u57f7\u884c\u4e00\u6bb5\u7a0b\u5f0f\u78bc\uff0c\u76f4\u5230\u689d\u4ef6\u4e0d\u518d\u6eff\u8db3\u3002\u6700\u5e38\u7528\u7684\u8ff4\u5708\u662f \u51fd\u6578\u662f\u4e00\u6bb5\u53ef\u4ee5\u91cd\u8907\u4f7f\u7528\u7684\u7a0b\u5f0f\u78bc\u3002\u5b9a\u7fa9\u51fd\u6578\u7684\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n DOM (Document Object Model) \u662f\u7db2\u9801\u7684\u7d50\u69cb\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 JavaScript \u64cd\u4f5c\u7db2\u9801\u4e0a\u7684\u5143\u7d20\u3002<\/p>\n \u4e8b\u4ef6\u8655\u7406\u53ef\u4ee5\u8b93\u6211\u5011\u76e3\u807d\u548c\u56de\u61c9\u4f7f\u7528\u8005\u7684\u52d5\u4f5c\uff0c\u5982\u9ede\u64ca\u3001\u8f38\u5165\u7b49\u3002<\/p>\n \u9019\u662f JavaScript \u7684\u57fa\u672c\u6982\u5ff5\uff0c\u4e86\u89e3\u4e86\u9019\u4e9b\u5167\u5bb9\u4e4b\u5f8c\uff0c\u60a8\u5c31\u53ef\u4ee5\u958b\u59cb\u64b0\u5beb\u81ea\u5df1\u7684\u4e92\u52d5\u5f0f\u7db2\u9801\u7a0b\u5f0f\u4e86\uff01<\/p>\n","protected":false},"excerpt":{"rendered":" JavaScript \u57fa\u790e\u5165\u9580\u6559\u6750 1. JavaScript \u662f\u4ec0\u9ebc\uff1f Jav … <\/p>\n","protected":false},"author":1,"featured_media":14977,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[266],"tags":[],"class_list":["post-15022","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-266"],"_links":{"self":[{"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/posts\/15022","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/comments?post=15022"}],"version-history":[{"count":2,"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/posts\/15022\/revisions"}],"predecessor-version":[{"id":15147,"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/posts\/15022\/revisions\/15147"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/media\/14977"}],"wp:attachment":[{"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/media?parent=15022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/categories?post=15022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fgchen.com\/wpedu\/wp-json\/wp\/v2\/tags?post=15022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<script><\/code> \u6a19\u7c64\u4f86\u5d4c\u5165 JavaScript \u7a0b\u5f0f\u78bc\u3002\u5c07\u7a0b\u5f0f\u78bc\u5beb\u5728 <script><\/code> \u6a19\u7c64\u4e2d\uff0c\u6216\u662f\u9023\u7d50\u5230\u5916\u90e8\u7684 JavaScript \u6587\u4ef6\u3002<\/p>\n\u7bc4\u4f8b\uff1a<\/h4>\n
<!DOCTYPE html>\n<html lang="zh">\n<head>\n <meta charset="UTF-8">\n <title>JavaScript \u57fa\u672c\u7bc4\u4f8b<\/title>\n<\/head>\n<body>\n <h1>\u6b61\u8fce\u4f86\u5230 JavaScript \u6559\u6750<\/h1>\n\n <script>\n alert('Hello, World!');\n <\/script>\n<\/body>\n<\/html><\/code><\/pre>\n3. \u8b8a\u6578\u8207\u8cc7\u6599\u578b\u5225<\/h3>\n
var<\/code>\u3001let<\/code> \u6216 const<\/code> \u95dc\u9375\u5b57\u4f86\u5b9a\u7fa9\u8b8a\u6578\u3002<\/p>\n\u8b8a\u6578\u7bc4\u4f8b\uff1a<\/h4>\n
var name = 'Alice'; \/\/ \u4f7f\u7528 var \u5b9a\u7fa9\u8b8a\u6578\nlet age = 25; \/\/ \u4f7f\u7528 let \u5b9a\u7fa9\u8b8a\u6578\nconst isStudent = true; \/\/ \u4f7f\u7528 const \u5b9a\u7fa9\u4e0d\u53ef\u8b8a\u8b8a\u6578<\/code><\/pre>\n\n
var greeting = 'Hello';<\/code><\/li>\nvar score = 90;<\/code><\/li>\nvar isTrue = false;<\/code><\/li>\n<\/ul>\n4. \u57fa\u672c\u904b\u7b97<\/h3>\n
\u904b\u7b97\u7b26\u7bc4\u4f8b\uff1a<\/h4>\n
let a = 10;\nlet b = 5;\n\nlet sum = a + b; \/\/ \u52a0\u6cd5\nlet difference = a - b; \/\/ \u6e1b\u6cd5\nlet product = a * b; \/\/ \u4e58\u6cd5\nlet quotient = a \/ b; \/\/ \u9664\u6cd5<\/code><\/pre>\n5. \u689d\u4ef6\u5224\u65b7 (if-else)<\/h3>\n
if<\/code>\u3001else if<\/code> \u548c else<\/code> \u4f86\u5be6\u73fe\u3002<\/p>\n\u7bc4\u4f8b\uff1a<\/h4>\n
let score = 85;\n\nif (score >= 90) {\n console.log('\u6210\u7e3e\u512a\u7570');\n} else if (score >= 60) {\n console.log('\u6210\u7e3e\u5408\u683c');\n} else {\n console.log('\u6210\u7e3e\u4e0d\u5408\u683c');\n}<\/code><\/pre>\n6. \u8ff4\u5708 (Loop)<\/h3>\n
for<\/code> \u548c while<\/code>\u3002<\/p>\nfor \u8ff4\u5708\u7bc4\u4f8b\uff1a<\/h4>\n
for (let i = 0; i < 5; i++) {\n console.log('\u9019\u662f\u7b2c ' + i + ' \u6b21\u8ff4\u5708');\n}<\/code><\/pre>\n7. \u51fd\u6578 (Function)<\/h3>\n
\u51fd\u6578\u7bc4\u4f8b\uff1a<\/h4>\n
function greet(name) {\n return 'Hello, ' + name + '!';\n}\n\nlet message = greet('Alice');\nconsole.log(message); \/\/ \u8f38\u51fa 'Hello, Alice!'<\/code><\/pre>\n8. DOM \u64cd\u4f5c<\/h3>\n
\u7bc4\u4f8b\uff1a\u6539\u8b8a\u5143\u7d20\u7684\u6587\u5b57\u5167\u5bb9<\/h4>\n
\/\/ \u5047\u8a2d HTML \u4e2d\u6709 <p id="text">\u9019\u662f\u539f\u59cb\u6587\u5b57<\/p>\ndocument.getElementById('text').textContent = '\u9019\u662f\u65b0\u7684\u6587\u5b57';<\/code><\/pre>\n9. \u4e8b\u4ef6\u8655\u7406<\/h3>\n
\u7bc4\u4f8b\uff1a\u6309\u9215\u9ede\u64ca\u4e8b\u4ef6<\/h4>\n
<button id="myButton">\u9ede\u64ca\u6211<\/button>\n\n<script>\n document.getElementById('myButton').addEventListener('click', function() {\n alert('\u6309\u9215\u88ab\u9ede\u64ca\u4e86\uff01');\n });\n<\/script><\/code><\/pre>\n10. \u7e3d\u7d50<\/h3>\n
\n