实例代码“Ctrl+/”提示“F11/ESC”全屏 返回 格式化 恢复 运行
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<!DOCTYPE html>
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<html>
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<body>
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​
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<p> + 号运算符用于连接字符串。</p>
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​
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<button onclick="myFunction()">点我</button>
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​
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<p id="demo"></p>
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​
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<script>
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function myFunction() {
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    var text1 = "Good ";
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    var text2 = "Morning";
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    var text3 = text1 + text2;
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    document.getElementById("demo").innerHTML = text3;
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}
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</script>
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​
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</body>
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</html>
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