如何从一个文件中的CIDR生成所有in？

def generate_ips_from_cidr_file(file_path):
    ips = []
    with open(file_path, 'r') as file:
        for line in file:
            cidr = line.strip()
            network_address, host_bits = cidr.split('/')
            network_address_parts = network_address.split('.')
            network_address_int = (int(network_address_parts[0]) << 24) + (int(network_address_parts[1]) << 16) + (int(network_address_parts[2]) << 8) + int(network_address_parts[3])
            host_count = 2 ** (32 - int(host_bits))
            for i in range(host_count):
                ip_int = network_address_int + i
                ip_parts = [(ip_int >> 24) & 255, (ip_int >> 16) & 255, (ip_int >> 8) & 255, ip_int & 255]
                ip = '.'.join(map(str, ip_parts))
                ips.append(ip)
    return ips

# 示例用法
cidr_file_path = 'cidr.txt'
ips = generate_ips_from_cidr_file(cidr_file_path)
for ip in ips:
    print(ip)