如何设置加/减/范围值的按钮限制？

<input type="number" min="0" max="100" step="1" value="0">

<button onclick="decreaseValue()">-</button>
<input type="text" id="inputValue" value="0">
<button onclick="increaseValue()">+</button>

<script>
    function decreaseValue() {
        var inputValue = document.getElementById("inputValue");
        var value = parseInt(inputValue.value);
        if (value > 0) {
            inputValue.value = value - 1;
        }
    }

    function increaseValue() {
        var inputValue = document.getElementById("inputValue");
        var value = parseInt(inputValue.value);
        if (value < 100) {
            inputValue.value = value + 1;
        }
    }
</script>