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python读取数据绘图**
数据示例如下：
import pandas as pd # 导入Pandas库
import matplotlib.pyplot as plt
data = pd.read_csv('test.csv') # 读取csv数据
x = data.loc[:, 'A'] # 读取各列数据
y = data.loc[:, 'B']
print(data) # 打印输出数据
print(x)
print(y)
plt.plot(x, y)
plt.show()
