Python习题集（一）

有一个数据list of dict如下
a = [
    {"test1": "123456"},
    {"test2": "123456"},
    {"test3": "123456"},
]
写入到本地一个txt文件，内容格式如下：
test1,123456
test2,123456
test3,123456

lists = [
    {"yoyo1": "111111"},
    {"yoyo2": "222222"},
    {"yoyo3": "333333"},
]
with open("test.txt", "w+", encoding="utf-8") as f:
    for data in lists:
        for key, value in data.items():
            f.write(f"{key},{value}\n")