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Csv

不将首行当作 index(标题)

df = pd.read_csv('example.csv', header=None)

Iterator

first_5_rows = df.head(5)

# 绘制每行数据,使用semilogy绘制对数坐标轴
for index, row in first_5_rows.iterrows():
    plt.semilogy(row.index, row.values, label=f'Row {index}')