Python实战系列 | 正则提取数据并绘图

with open('data.txt') as f:
    data = f.read()

datas = re.findall('({.*?})',data)

re.findall('\'(.*)\'',datas[0])[0]

re.findall('(\d+(\.\d+)?)',datas[0])

for i in range(0,len(datas_tmp),4):
    datas_f.append(float(datas_tmp[i+3][0]))
    dates_f.append(f'{datas_tmp[i][0]}-{datas_tmp[i+1][0]}-{datas_tmp[i+2][0]}')

# 处理数据
with open('data.txt') as f:
    data = f.read()
datas = re.findall('({.*?})',data)
names = []
dates_result = []
datas_result = []
for idx,dd in enumerate(datas):
    datas_f = []
    dates_f = []
    name = re.findall('\'(.*)\'',dd)[0]
    names.append(name)
    datas_tmp = re.findall('(\d+(\.\d+)?)',dd)
    for i in range(0,len(datas_tmp),4):
        datas_f.append(float(datas_tmp[i+3][0]))
        dates_f.append(f'{datas_tmp[i][0]}-{datas_tmp[i+1][0]}-{datas_tmp[i+2][0]}')
    datas_result.append(datas_f)
    dates_result.append(dates_f)

# 绘图
plt.figure(figsize=(20, 10), dpi=100)
for i in range(len(names)):
    plt.plot(dates_result[i], datas_result[i], label=names[i])
ax = plt.gca()
ax.xaxis.set_major_locator(ticker.MultipleLocator(20))
plt.ylabel("Ratings(%)", fontdict={'size': 16})
plt.title("TIOBE Programming Community Index", fontdict={'size': 20})
plt.legend(loc='best')
plt.grid(True, linestyle='--', alpha=0.5)
plt.show()