javascript - 连接 1 个字符串和一个 int 值，同时将 id 值赋予在 HTML 中动态生成的 字段

Question

var but = document.createElement('span');

        but.innerHTML.id="but1"+inc;

        but.innerHTML = '<button value="delete row" id="'but'+inc"  
onclick="deleteRow(this.id)">delete row</button>';

// '"but"+inc' , "but+inc" are not working

//here inc is an integer value which increments by one

Answer 1

这是错误的

  but.innerHTML.id="but1"+inc;

事情应该是这样的

  but.id="but1"+inc;

  but.innerHTML = '<button value="delete row" id="but'+inc+'" onclick="deleteRow(this.id)">delete row</button>';