import json
ss = {"a":"美女你好,感觉似曾相识"}
print(json.dumps(ss).replace(r"\u",r"\\u"))
print(json.dumps(ss))
ss = {"a":"美女你好,感觉似曾相识"}
print(json.dumps(ss,ensure_ascii=False))
print('\u7f8e')
print('\\u7f8e')
print('\\\u7f8e')
print('\\\\u7f8e')
print(json.dumps(ss))
dd = json.dumps(ss)[json.dumps(ss).find("\\u"):-2]
print(dd)
结论:有时间再总结