JS更改按钮值点击以获取多个按钮

Question

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.

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这个问题是由类错字或无法再现的问题引起的。虽然类似的问题可能是主题在这里，这一问题的解决方案的解决方案较小，无法帮助未来的读者。

闭合 2年前。

Answer 1

<input id=-btn" type="button" value="ADD" onclick="func(this)"/>

<input id="btn" type="button" value="ADD"  onclick="func(this)"/>

<input id="btn" type="button" value="ADD" onclick="func(this)"/>


<script>
        function func(event) {
          if (event.value === "ADD") {
            event.value = "ADDED";
          } else {
            event.value = "ADD";
          }
        }
      </script>

Answer 2

function changeValue(event) {
      if (event.target.value === "ADD") {
        event.target.value = "ADDED";
      } else {
        event.target.value = "ADD";
      }
    }

    <input id="btn" onclick="changeValue(event)" type="button" value="ADD" />

    <input id="btn" onclick="changeValue(event)" type="button" value="ADD" />

    <input id="btn" onclick="changeValue(event)" type="button" value="ADD" />