JavaScript while和do / while循环

Question

I have this code who works properly with for loop, how to made while and do/while loop to work properly on same way when i click on button? 我有这段代码可以正确使用for循环，当我单击按钮时，如何使while和do / while循环以相同的方式正常工作？

<body>
    <div>
        <button onclick = "fun()">Click
        </button>
        <p id = "dr">
        </p>
            <script>
                function fun() {
                    var str = "";
                        for (var i = 0; i < 11; i++) {
                            str = str + i + "<br/>";
                            document.getElementById("dr").innerHTML = str;
                        } 
                 }
            </script>
    </div>   
</body>

Answer 1

This sounds a bit like HW, so I won't give you the entire code. 这听起来有点像硬件，所以我不会给您完整的代码。

However, you have this code in your for loop 但是，您的for循环中有此代码

for (var i=0; I<11; i++)
}

In that, I is never defined, so you should probably change it to i . 在那方面， I从未定义过，因此您可能应该将其更改为i 。

For changing it to a do{}..while() loop, remember that every for loop of the form for(a;b;c){d;} can be expanded to the while loop 要将其更改为do{}..while()循环，请记住for(a;b;c){d;}形式的每个for循环都可以扩展为while循环

a;
while(b){
    d;
    c;
}

and therefore to the do..while loop of 因此到的do..while循环

a;
do{
    d;
    c;
}while(b);

Answer 2

while: 而：

function fun()
{
   var str ="";
   while( i < 11 )
   {
        str=str + i +"<br/>";
        document.getElementById("dr").innerHTML =srt;
        i++;
   }
}

do/while: 做/做：

function fun()
{
   var str ="";
   do
   {
        str=str + i +"<br/>";
        document.getElementById("dr").innerHTML =srt;
        i++;
   }while( i < 11 );
}

JavaScript while和do / while循环

问题描述

2 个解决方案

解决方案1
0 2014-01-13 15:22:14

解决方案2
0 2014-01-13 15:22:28

JavaScript while和do / while循环

问题描述

2 个解决方案

解决方案1 0 2014-01-13 15:22:14

解决方案2 0 2014-01-13 15:22:28

解决方案1
0 2014-01-13 15:22:14

解决方案2
0 2014-01-13 15:22:28