Question

This code snippet试图在Opa书中扩展“hello_chat”，引发了如下的奇怪语法错误：

[bahman@bleda Peyk]$ opa main.opa
In main.opa [24:2-24:2 | global chars=600-600]
Syntax error at line 24, column 2
The error may be in the following citation, usually in the red part (starting at ⚐) or just before:
<<(
  net = Network.cloud("PEYK")
  room_name = Dom.get_value(#room)
  server_channel = "{room_name}__SERVER"
  Network.add(room_name, net)
  ⚐Network.add(server_channel, net)

  user = String.to_lower(Dom.get_value(#user))
  do notify_room_join(server_channel, user)

>>
Hint: expected "" or "%" or "&" or ")" or "*" or "," or "->" or "/" or "/*" or "//" or ":" or "<" or "<-" or "=" or "?" or "@" or "|" or "||" or '  ' or ' ' or '+' or '-' or '^' or <spacing> or <xhtml> 
(while parsing <expression unary '-'> starting at line 23, column 2)
Error
Syntax error

也许我正在做一些愚蠢的错误但是在大约4个小时之后无法找出来源。我很感激任何提示/帮助。 TIA，

-
巴曼戈巴

Answer 1

不要忘记在函数返回void之前放置执行 my_fun;）

语法错误解析<expression unary =“”' - '=“”> </expression>

1 个答案: