python json.dumps 格式化输入

str1 = {
       "name":"laowang",
        "age":18,
       "heighet":"haha",
       "brand":{"name":2}
       }
import json
print(json.dumps(str1))
结果：
{"brand": {"name": 2}, "heighet": "haha", "age": 18, "name": "laowang"}
print(json.dumps(str1,indent=2,sort_keys=True))
结果：
{
  "age": 18,
  "brand": {
    "name": 2
  },
  "heighet": "haha",
  "name": "laowang"
}
# 这种可以很方便查看