清理了部分垃圾

includes/_fakeduck.py

@@ -272,14 +272,19 @@ class _str:
 
     def split(self, delimiter: str) -> list[str]:
         stdio.printf("DBG split: entry\n")
+        stdio.fflush(None)
         result = list[str](self.__mbuddy__)
         stdio.printf("DBG split: list created\n")
+        stdio.fflush(None)
         src: str = self.__data__
         stdio.printf("DBG split: src=%s\n", src)
+        stdio.fflush(None)
         length: t.CSizeT = len(src)
         stdio.printf("DBG split: length=%lu\n", length)
+        stdio.fflush(None)
         delim_len: t.CSizeT = string.strlen(delimiter)
         stdio.printf("DBG split: delim_len=%lu\n", delim_len)
+        stdio.fflush(None)
         start: t.CSizeT = 0
         i: t.CSizeT = 0
         cur: str = src