处理COBOL文件的Python代码示例

本示例展示了如何使用Python处理COBOL文件，包括读取和写入文件、解析文件并将结果转换为CSV格式。这个代码示例可以帮助COBOL开发人员提高效率和简化工作流程。

import struct
import csv

filepath = 'filename.dat'

with open(filepath, 'rb') as fsource:
    with open('filename.csv', 'w', newline='') as fdestination:
        writer = csv.writer(fdestination)
        record_length = 80  # Record length is usually 80 bytes
        while True:
            record = fsource.read(record_length)
            if not record:
                break
            # Parsing logic goes here (using struct module)
            # Write the row to the CSV file
            writer.writerow(row_data)

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