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import requests
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from bs4 import BeautifulSoup
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import matplotlib.pyplot as plt
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url = "https://api.bilibili.com/x/v1/dm/list.so?oid=1643253304"
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# 伪装成浏览器访问
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header = {"user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36 Edg/128.0.0.0"}
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response = requests.get(url, headers=header)
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response.encoding = 'utf-8'
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xml = response.text
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soup = BeautifulSoup(xml, "lxml")
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content_all = soup.find_all(name="d")
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timeList = []
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# for循环遍历content_all
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for content in content_all:
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# 使用.attrs获取p对应的属性值，并赋值给data
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data = content.attrs["p"]
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# 使用split()函数分割data，把第一个元素时间赋值给time
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time = data.split(",")[0]
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# 将time转换成浮点数，添加进列表timeList中
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timeList.append(float(time))
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danmu_dict = {}
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for x in range(7):
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start = 30 * x + 1
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end = 30 * (x + 1)
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segment_range = f"{start}-{end}"
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danmu_dict[segment_range] = 0
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for danmu in danmu_dict.keys():
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start_key = danmu.split("-")[0]
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end_key = danmu.split("-")[1]
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for time in timeList:
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if int(start_key) <= time <= int(end_key):
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danmu_dict[danmu] = danmu_dict[danmu] + 1
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path = 'D:/雷电大魔王/Python/软工作业/软工作业/' # 保存路径
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name = 'danmu' # 图表名称
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plt.title(name+"_chart")
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plt.rc('font',family='SimHei'); plt.rc('font',size=17)
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#提取字典的键和值
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x = list(danmu_dict .keys())
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y = list(danmu_dict.values())
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#绘制折线图
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plt.plot(x, y)
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plt.xlabel('X')
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plt.ylabel('Y')
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plt.savefig(path + "/" + r"弹幕统计图.png")
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