比较两个JSON文件并返回差异

import json

def compare_json(file1, file2):
    with open(file1, 'r') as f1, open(file2, 'r') as f2:
        json1 = json.load(f1)
        json2 = json.load(f2)
    
    diff = find_diff(json1, json2)
    return diff

def find_diff(obj1, obj2):
    if isinstance(obj1, dict) and isinstance(obj2, dict):
        diff = {}
        for key in obj1:
            if key not in obj2:
                diff[key] = {'status': 'deleted', 'value': obj1[key]}
            elif obj1[key] != obj2[key]:
                if isinstance(obj1[key], (dict, list)) and isinstance(obj2[key], (dict, list)):
                    nested_diff = find_diff(obj1[key], obj2[key])
                    if nested_diff:
                        diff[key] = nested_diff
                else:
                    diff[key] = {'status': 'modified', 'old_value': obj1[key], 'new_value': obj2[key]}
        for key in obj2:
            if key not in obj1:
                diff[key] = {'status': 'added', 'value': obj2[key]}
        return diff
    elif isinstance(obj1, list) and isinstance(obj2, list):
        diff = []
        for i in range(min(len(obj1), len(obj2))):
            if obj1[i] != obj2[i]:
                if isinstance(obj1[i], (dict, list)) and isinstance(obj2[i], (dict, list)):
                    nested_diff = find_diff(obj1[i], obj2[i])
                    if nested_diff:
                        diff.append(nested_diff)
                else:
                    diff.append({'status': 'modified', 'old_value': obj1[i], 'new_value': obj2[i]})
        if len(obj1) > len(obj2):
            for i in range(len(obj2), len(obj1)):
                diff.append({'status': 'deleted', 'value': obj1[i]})
        elif len(obj1) < len(obj2):
            for i in range(len(obj1), len(obj2)):
                diff.append({'status': 'added', 'value': obj2[i]})
        return diff
    else:
        return None

# 示例用法
file1 = 'file1.json'
file2 = 'file2.json'
diff = compare_json(file1, file2)
print(json.dumps(diff, indent=4))