03JavaScript程序设计修炼之道_2019-06-30_20-42-00_2019-07-02_20-03-55 addEventListener、事件流、取消默认行为、取消冒泡阶段...

时间 2021-01-18

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19event-listener.html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatibl