FIX.部分操作直接返回list

bind.go

@@ -150,5 +150,5 @@ func opPoAll(env environ) value {
 	for name := range env {
 		list = append(list, name)
 	}
-	return value{word: makeList(list)}
+	return value{tp: typeList, list: list}
 }

io.go

@@ -49,5 +49,5 @@ func opReadList(scanner *scanProvider) value {
 			list = append(list, parseWord(`"` + s).word[1:])
 		}
 	}
-	return value{word: makeList(list)}
+	return value{tp: typeList, list: list}
 }