如何在一个命令中从对象的diff字段中提取一些值

import json

# 假设我们有一个包含diff字段的JSON对象
json_obj = {
    "name": "John",
    "age": 30,
    "diff": {
        "field1": "value1",
        "field2": "value2",
        "field3": "value3"
    }
}

# 将diff字段转换为Python字典对象
diff_dict = json_obj["diff"]

# 提取所需的值
value1 = diff_dict["field1"]
value2 = diff_dict["field2"]
value3 = diff_dict["field3"]

# 打印提取的值
print(value1)
print(value2)
print(value3)

# 假设我们有一个包含diff字段的JSON对象保存在文件中
cat json_file.json | jq '.diff.field1, .diff.field2, .diff.field3'