有幾個地方改動都注釋了

<script?type="text/javascript">
????var?mycon?=?document.getElementById("con");
????var?mytxt?=?document.getElementById("txt");
????//定義"改變顏色"的函數
????function?yanse(){
????????mytxt.style.color="red";
????}

????//定義"改變寬高"的函數
????function?gaodu(){
????????//mytxt.style.width="200";????????//帶px
????????//mytxt.style.height="200";??????//帶px
????????mytxt.style.width="200px";????????
????????mytxt.style.height="200px";????????
????}

????//定義"隱藏內容"的函數
????function?yincang(){
????????mytxt.style.display="none";
????}

????//定義"顯示內容"的函數
????//function?yincang(){????????????//函數名寫錯了
????function?xianshi(){???????????????
????????mytxt.style.display="block";
????}

????//定義"取消設置"的函數
????function?quxiao(){
????????var?queding?=?confirm("是否恢復原始設置？")
????????//?if(queding==ture){????//true拼寫錯了
????????if(queding==true){???????????
????????????mytxt.removeAttribute('style');
????????}
????}
</script>