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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>runoops自学教程(runoops.com)</title> <style> div { color:blue; } p { color:green; margin:0; } span { color:red; } </style> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script> </head> <body> <div></div> <p></p> <span></span> <script> $(function () { var arr = [ "a", "b", "c", "d", "e" ]; $("div").text(arr.join(", ")); arr = $.map(arr, function(n, i){ return (n.toUpperCase() + i); }); $("p").text(arr.join(", ")); arr = $.map(arr, function (a) { return a + a; }); $("span").text(arr.join(", ")); }) </script> </body> </html>
运行结果：