摘要:
symbol的使用 功能 类似于一种标志唯一性的ID 理解唯一性 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <script> let s1=Sy 阅读全文
posted @ 2024-07-28 23:42
Bre-eZe
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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <script> var PI=3.1415926 if(true){ console.log(PI) 阅读全文
posted @ 2024-07-28 17:13
Bre-eZe
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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <script> // let与var的区别 // 1.只在代码块中有效 for (var i = 0 阅读全文
posted @ 2024-07-28 17:03
Bre-eZe
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