我是Html的新手,我試圖創建一個腳本來顯示用戶輸入回到用戶。無論何時我輸入一個新的輸入,新的用戶輸入騎上一次輸入。但我需要顯示所有的用戶輸入?如何使用Javascript來做到這一點。如何顯示以前的用戶輸入以及新的輸入
我的代碼
<html><head></head><body>
<input id="title" type="text" >
<input type="submit" value="Save/Show" onclick="clearAndShow()" />
<div id="display2letter"></div>
<div id="display3letter"></div>
<div id="display4letter"></div>
<script type="text/javascript">
var titleInput = document.getElementById("title");
var display2letter = document.getElementById("display2letter");
var display3letter = document.getElementById("display3letter");
var display4letter = document.getElementById("display4letter");
function clearAndShow() {
// Split input box value by comma
titles = titleInput.value.split(",");
// Reset display divs
display2letter.innerHTML = "";
display3letter.innerHTML = "";
display4letter.innerHTML = "";
// Cache length so it's not recalculated on each iteration.
var len = titles.length;
var twoletter = [];
var threeletter = [];
var fourletter =[];
for (i = 0; i < len; i++) {
// Check for a-z, A-Z,
if (!titles[i].match(/^[a-zA-Z]/)) {
throw error("Please use only alphabet letters");
}
// Dump into storage arrays.
if(titles[i].length == 2) {
twoletter.push(titles[i]);
}
else if(titles[i].length == 3){
threeletter.push(titles[i]);
}
else if(titles[i].length == 4){
fourletter.push(titles[i]);
}
}
display2letter.innerHTML += " 2 letters: " + twoletter.join(", ") + "<br/>";
display3letter.innerHTML += " 3 letters: " + threeletter.join(", ") + "<br/>";
display4letter.innerHTML += " 4 letters: " + fourletter.join(", ") + "<br/>";
}
</script>
</body>
</html>
您應該創建這樣 – subZero
導致問題的jsfiddle這一點,在閱讀你的問題和代碼之後,我的思想並沒有加入到兩個,你可以創造一個小提琴或解釋它好一點? – bitoiu