“循环”Pandas Dataframe中的每一天，并从相应的列中提取值

import pandas as pd

# 创建一个示例DataFrame
data = {'日期': ['2022-01-01', '2022-01-02', '2022-01-03'],
        '数值1': [10, 20, 30],
        '数值2': [40, 50, 60]}
df = pd.DataFrame(data)

# 循环遍历每一行并提取数值1和数值2的值
for index, row in df.iterrows():
    date = row['日期']
    value1 = row['数值1']
    value2 = row['数值2']
    print(f"日期: {date}, 数值1: {value1}, 数值2: {value2}")

日期: 2022-01-01, 数值1: 10, 数值2: 40
日期: 2022-01-02, 数值1: 20, 数值2: 50
日期: 2022-01-03, 数值1: 30, 数值2: 60

import pandas as pd

# 创建一个示例DataFrame
data = {'日期': ['2022-01-01', '2022-01-02', '2022-01-03'],
        '数值1': [10, 20, 30],
        '数值2': [40, 50, 60]}
df = pd.DataFrame(data)

# 循环遍历每一列并提取每一列的值
for column, values in df.iteritems():
    print(f"列名: {column}")
    for value in values:
        print(value)

列名: 日期
2022-01-01
2022-01-02
2022-01-03
列名: 数值1
10
20
30
列名: 数值2
40
50
60