JavaScript - innerHTML与addEventListener

测试用例:html <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>指定标签插入数据+点击标签交互</title> </head> <body> <p id = '222' onclick="b()">☆下面将会测试两个功能☆</p> <button id="myButton" onclick="a()">点我</butto
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