如何添加2个onclick功能

Question

Parameter:Tabslan2%24ctl02%24gvTasks2%24ctl00%24ctl06%24rptrComments%24ctl01%24FC%24hdnUserName
Value: at1+Tra+AN%2C+LPN%2C+MD%2C+RN%2C+BS%2C+BA+%28Ph

如何在每次onclick事件之前添加一串文本。 例如，第二个按钮的输出是＆＃34; 6＆＃34;虽然我希望它是＆＃34;列表中的项目数量是：6＆＃34;

Answer 1

你可以连接字符串：

<button type = "button" onclick = "document.getElementById('prod3').innerHTML = 'the number of items in the list is: ' + products.length;">Count the number of items in the list!</button>

Answer 2

你好把文字放在＆＃39; text＆＃39;并在添加+。
像这样：

<button type = "button" onclick = "document.getElementById('prod3').innerHTML = 'the number of items in the list is: ' + products.length;">