我想制作一个不断向 id 添加 5 的按钮。如何?

I want to make a button that keeps adding 5 to an id. How?

请帮忙。每次按下修复按钮时,我都想在段落 ID 中添加 5。

function heal(value3) {
  document.getElementById('defend').innerHTML = +5 defend;
}
<p id="defend">10</p>
<input type="button" value="Heal" id="def" onclick="heal(this.value3);">

document.getElementById('defend').id = + 5 防守;

试试这个

var heal = function(value) {
 let para = document.getElementById('defend');
 para.textContent = parseInt(para.textContent) + 5;
};
<p id="defend">10</p>
<input type="button" value="Heal" id="def" onclick="heal(this.value);">