What does this form mean? Can you explain it in detail sentence by sentence?

Question

<form>
    <input type="text" name="num1">    <select name="fh">
        <option value="jia"> </option>
        <option value="jian"> - </option>
        <option value="c"> x </option>
        <option value="chu"> / </option>
        <option value="qy"> % </option>    </select>    <input type="text" name="num2">    <input type="submit" value="运算" />
</form>

Answer 1

Simple addition, subtraction, multiplication, division and remainder form

<input type="text" name="num1">

means entering a number 1

< ;select name="fh">
; ;option value="c"> x </option>
; /option>

</select>

Represents the selection operator

<input type="text" name="num2">

Indicates entering a number 2

<input type="submit" value="Operation" />

Indicates submitting the form to obtain the calculation result (it can be returned by the backend or the frontend itself calculate)