要根据您的问题编写CSV，您可以使用以下示例：

import csv

files = ['f1', 'f2']
params_a = ['a1', 'a2']
params_p = ['p1', 'p2', 'p3']

with open('data.csv', 'w') as f_out:
    writer = csv.writer(f_out)

    # write header
    writer.writerow(['Column A', 'Column B', 'Column C'])

    # write rows
    for f, p1, p2 in zip(files, params_a, params_p):
        writer.writerow([f, p1, p2])

这将写入具有以下内容的data.csv：

Column A,Column B,Column C
f1,a1,p1
f2,a2,p2

根据您提供的代码，最直接的答案是：

files = ["f1", "f2"]
params_a = ["a1", "a2"]
params_p = ["p1", "p2", "p3"]

with open("output_manual.csv", "a", newline="") as csvfile:
    csvwriter = csv.writer(csvfile)

    row = [files[0]] + params_a
    csvwriter.writerow(row)

    row = [files[1]] + params_p
    csvwriter.writerow(row)

输出：

f1,a1,a2
f2,p1,p2,p3

params_a属于文件"f1"，params_p属于"f2"，这似乎是您需要手动编码的特殊知识。
如果您的数据实际上是这样的：

files = [
    "f1",
    "f2",
]

params = [
    ["a1", "a2"],
    ["p1", "p2", "p3"],
]

然后你可以这样做：

with open("output_mine.csv", "w", newline="") as f_out:
    writer = csv.writer(f_out)
    
    for i, file in enumerate(files):
        row = [file] + params[i]
        writer.writerow(row)

如果愿意，您还可以动态调整标题大小：

max_param_len = 0
for param in params:
    if len(param) > max_param_len:
        max_param_len = len(param)

header = ["File"]
for i in range(max_param_len):
    header += [f"Param_{i+1}"]

然后插入：

...
writer = csv.writer(f_out)
writer.writerow(header)
...

输出：

File,Param_1,Param_2,Param_3
f1,a1,a2
f2,p1,p2,p3

您的数据也可以如下所示，类似的操作也会起作用：

file_param_map = {
    "f1": ["a1", "a2"],
    "f2": ["p1", "p2", "p3"],
}

import csv

with open('params_test', 'w') as csv_file:
    files = ['f1', 'f2']
    params_a = ['a1', 'a2']
    params_p = ['p1', 'p2', 'p3']
    # Find the max number of columns needed.
    col_max = max(len(params_a), len(params_p))
    c_writer = csv.writer(csv_file)
    for p in [params_a, params_p]:
        # If number of columns is <  the max number pad with empty strings
        if len(p) < col_max:
             for l in range(col_max - len(p)):
                 p.append('')
    # Add the file name to start of params* list. Then write out row.
    params_a.insert(0, files[0])
    c_writer.writerow(params_a)
    params_p.insert(0, files[1])
    c_writer.writerow(params_p)

cat params_test
f1,a1,a2,
f2,p1,p2,p3