def dict_to_str(d):
""" (dict) -> str
Return a str containing each key and value in d. Keys and values are
separated by a space. Each key-value pair is separated by a comma.
>>>
我试图解析JSON对象,但我不断收到错误 Caused by: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was NAME at line 1 column 3 path $.
at com.googl