如果替换innerHTML，之前输入的值将被清除，为避免这种情况，您可以通过编程方式附加输入元素:

If you replace the innerHTML, the previously entered values will be cleared, to avoid that, you can append the input elements programmatically:

var input = document.createElement('input'); 
input.type = "text"; 
//...    
container.appendChild(input); 

检查 this 示例.