data: {"code":0,"info":"succ","data":{"content":"# 大","finish_reason":null}}
data: {"code":0,"info":"succ","data":{"content":"语言模型的发展历程","finish_reason":null}}
data: {"code":0,"info":"succ","data":{"content":"\n## 1","finish_reason":null}}
data: {"code":0,"info":"succ","data":{"content":". 起","finish_reason":null}}
.....