比较两个YAML文件中的关键字并打印差异？

import yaml

def compare_yaml(file1, file2):
    with open(file1, 'r') as f1, open(file2, 'r') as f2:
        yaml1 = yaml.safe_load(f1)
        yaml2 = yaml.safe_load(f2)
    
    # 比较关键字并打印差异
    diff = {}
    for key in yaml1:
        if key not in yaml2:
            diff[key] = (yaml1[key], None)
        elif yaml1[key] != yaml2[key]:
            diff[key] = (yaml1[key], yaml2[key])
    
    for key in yaml2:
        if key not in yaml1:
            diff[key] = (None, yaml2[key])
    
    # 打印差异
    for key, values in diff.items():
        print(f"关键字：{key}")
        print(f"在文件1中的值：{values[0]}")
        print(f"在文件2中的值：{values[1]}")
        print()

# 比较两个YAML文件
compare_yaml("file1.yaml", "file2.yaml")