纯JS实现实时刷新时间显示代码

一、Js代码

 function getTime(){ 

    str = "当前系统时间：" 

    var p = document.getElementById("sy_time"); 

    time = new Date(); 

    year = time.getFullYear(); 

    month = time.getMonth() + 1; 

    day = time.getDate(); 

    hour = time.getHours(); 

    minutes = time.getMinutes(); 

    seconds = time.getSeconds(); 

    str = str + year +"-"+ month +"-"+ day + " " +hour+":"+minutes+":"+seconds; 

    p.innerText = str; 

    setTimeout(getTime,1000); 

  } 

  window.onload = function(){ 

    getTime(); 

  }

二、前端代码

<!-- 页面调用代码 -->

<p id = "sy_time"></p>

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