js的window.postMessage往不同窗口里面发送数据

父窗口

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    <iframe src="test2.html"></iframe>

    <script>

      function receiveMessage(e) {

        alert(e.data);

      }

      window.addEventListener("message", receiveMessage, false);

    </script>

子窗口test2.html

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    <input type="text" value="send" id="input" />

    <input type="button" value="send" id="button" />

    <script>

      document.getElementById('button').onclick = function () {

          top.postMessage(document.getElementById('input').value, '*');

      };

    </script>

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转载自blog.csdn.net/qq503690160/article/details/87605641