W3School TIY Editor
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<!DOCTYPE html> <html> <body> <p>单击按钮可将不同的对象转换为字符串。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var x1 = Boolean(0); var x2 = Boolean(1); var x3 = new Date(); var x4 = "12345"; var x5 = 12345; var res = String(x1) + "<br>" + String(x2) + "<br>" + String(x3) + "<br>" + String(x4) + "<br>" + String(x5); document.getElementById("demo").innerHTML = res; } </script> </body> </html>