该博客为转载内容，转载自https://www.cnblogs.com/tszr/p/10942434.html ，涉及JavaScript相关知识。
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鸟教程(runoob.com)</title> </head> <body> <p>点击下面的按钮，只要 i 小于 5 就一直循环代码块。</p> <button onclick="myFunction()">点击这里</button> <p id="demo"></p> <script> function myFunction(){ var x="",i=0; while (i<5){ x=x + "该数字为 " + i + "<br>"; i++; } document.getElementById("demo").innerHTML=x; } </script> </body> </html>
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鸟教程(runoob.com)</title> </head> <body> <p>点击下面的按钮，只要 i 小于 5 就一直循环代码块。</p> <button onclick="myFunction()">点击这里</button> <p id="demo"></p> <script> function myFunction(){ var x="",i=0; do{ x=x + "该数字为 " + i + "<br>"; i++; } while (i<5) document.getElementById("demo").innerHTML=x; } </script> </body> </html>
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鸟教程(runoob.com)</title> </head> <body> <script> cars=["BMW","Volvo","Saab","Ford"]; var i=0; for (;cars[i];){ document.write(cars[i] + "<br>"); i++; } </script> </body> </html>
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鸟教程(runoob.com)</title> </head> <body> <script> cars=["BMW","Volvo","Saab","Ford"]; var i=0; while (cars[i]){ document.write(cars[i] + "<br>"); i++; } </script> </body> </html>
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