### 1. 导入必要的库 ```python import pandas as pd import numpy as np import matplotlib.pyplot as plt ``` ```python # 定义一个类来管理项目 class Project: def __init__(self, name, price, label): return ``` ### 2. 生成项目 ```python # 导入数据 import pandas as pd from collections import defaultdict from collections import defaultdict from collections import Counter from collections import OrderedDict from collections import namedtuple from collections import deque from collections import Counter from collections import defaultdict from collections import namedtuple from collections import Counter import random from collections import defaultdict import itertools import numpy as np from collections import Counter import pandas as pd from collections import namedtuple import random import itertools import collections import matplotlib.pyplot as plt import seaborn as sns import math import time import os import pandas as pd import numpy as np import matplotlib.pyplot as plt import scipy.stats as stats import scipy.optimize import matplotlib.pyplot as plt import matplotlib.image as mpimg import matplotlib.pyplot as plt import matplotlib.pyplot as plt import matplotlib.image as mpimg import math import numpy as np import seaborn as sns import matplotlib.pyplot as plt import random import math import itertools import collections import time import pandas as pd import matplotlib.pyplot as plt import matplotlib.pylab as plt import scipy.stats as stats import scipy.optimize import matplotlib.pyplot as plt import matplotlib.pyplot as plt import scipy.stats as stats import scipy.optimize import os import numpy as np import seaborn as sns import scipy.stats as stats import matplotlib.pyplot as plt import pandas as pd import scipy.stats as stats import scipy.optimize as opt import numpy as np import seaborn as sns import matplotlib.pyplot as plt import matplotlib.image as mpimg import matplotlib.pyplot as plt import matplotlib.pyplot as plt import matplotlib.pylab as plt import matplotlib.pyplot as plt import matplotlib.image as mpimg import matplotlib.pyplot as plt import math import numpy as np import seaborn as sns import scipy.stats as stats import matplotlib.pyplot as plt import scipy.stats as stats import collections import itertools import scipy.stats as stats import collections import scipy.stats as sc import numpy as np import matplotlib.pyplot as plt import matplotlib.pyplot as plt import matplotlib.pyplot as plt import matplotlib.image as mpimg import matplotlib.pyplot as plt import matplotlib.image as mpimg import matplotlib.pyplot as plt import matplotlib.pyplot as plt import seaborn as sns import matplotlib.pyplot as plt import seaborn as sns import scipy.stats as stats import matplotlib.pyplot as plt import scipy.stats as stats import scipy.stats as stats import scipy as sp import matplotlib.pyplot as plt import seaborn as sns import pandas as pd import scipy.stats as stats import seaborn as sns import scipy.stats as stats import scipy as sp import math import 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