js 循环

Posted 2021-01-02 justSmile2

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了js 循环相关的知识，希望对你有一定的参考价值。

1. for 循环

for (var i=0; i<5; i++)
  {
  console.log(‘hello‘);
  }

2. for in 循环

var person={fname:"John",lname:"Doe",age:25};

for (x in person)
  {
  txt=txt + person[x];
  }

3. while 循环

while (i<5)
  {
  x=x + "The number is " + i + "<br>";
  i++;
  }

cars=["BMW","Volvo","Saab","Ford"];
var i=0;
for (;cars[i];)
{
document.write(cars[i] + "<br>");
i++;
}

4. do/while 循环

do
  {
  x=x + "The number is " + i + "<br>";
  i++;
  }
while (i<5);

1.for循环

以上是关于js 循环的主要内容，如果未能解决你的问题，请参考以下文章