吴裕雄--天生自然 JAVASCRIPT开发学习:(String) 对象
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吴裕雄--天生自然 JAVASCRIPT开发学习:(String) 对象
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鳥教程(runoob.com)</title> </head> <body><script> var carname1="Volvo XC60"; var carname2='Volvo XC60'; var answer1='It\'s alright'; var answer2="He is called \"Johnny\""; var answer3='He is called "Johnny"'; document.write(carname1 + "<br>") document.write(carname2 + "<br>") document.write(answer1 + "<br>") document.write(answer2 + "<br>") document.write(answer3 + "<br>") </script></body> </html>
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鳥教程(runoob.com)</title> </head> <body><script> var txt = "Hello World!"; document.write("<p>" + txt.length + "</p>"); var txt="ABCDEFGHIJKLMNOPQRSTUVWXYZ"; document.write("<p>" + txt.length + "</p>"); </script></body> </html>
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鳥教程(runoob.com)</title> </head> <body><p id="p1">Click the button to locate where "locate" first occurs.</p> <p id="p2">0</p> <button onclick="myFunction()">點我</button> <script> function myFunction(){var str=document.getElementById("p1").innerHTML;var n=str.indexOf("locate");document.getElementById("p2").innerHTML=n+1; } </script></body> </html>
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鳥教程(runoob.com)</title> </head> <body><script> var str="Hello world!"; document.write(str.match("world") + "<br>"); document.write(str.match("World") + "<br>"); document.write(str.match("world!")); </script></body> </html>
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鳥教程(runoob.com)</title> </head> <body><p>替換 "Microsoft" 為 "Runoob" :</p> <button onclick="myFunction()">點我</button> <p id="demo">請訪問 Microsoft!</p> <script> function myFunction() {var str = document.getElementById("demo").innerHTML; var txt = str.replace("Microsoft","Runoob");document.getElementById("demo").innerHTML = txt; } </script></body> </html>
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鳥教程(runoob.com)</title> </head> <body><p id="demo">單擊按鈕顯示數組。</p> <button onclick="myFunction()">點我</button> <script> function myFunction(){var str="a,b,c,d,e,f";var n=str.split(",");document.getElementById("demo").innerHTML=n[0]; } </script></body> </html>
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轉載于:https://www.cnblogs.com/tszr/p/10944602.html
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