translate the pipe-style codes into comments

thautwarm · thautwarm · commit 4b25e2356c5e · 2017-12-31T16:36:53.000+08:00
diff --git a/using_pipe.md b/using_pipe.md
@@ -9,14 +9,24 @@ from pipe_fn import e
 import linq.standard as std
 
 [1, 2, 3] | e / std.general.Sum | e / print
+# <=> print(std.general.Sum([1,2, 3]))
 
 [2, 3, -1] | e / std.list.Sort | e / print
+# <=> print(std.list.Sort([2, 3, -1])) 
 
 {1, 2, 3} | e / std.general.Zip * ([1, 2, 3],) | e / list | e / print
 
+# print(list(zip({1, 2, 3}, [1, 2, 3])))
+
 1 | e / std.general.Then * (lambda x: [x] * 20,) | e / sum | e / print
+# <=> print(sum(std.general.Then(1, lambda x: [x] * 20)))
 
 1 | e / std.general.Then * (lambda x: [x] * 20,) + e / sum + e / print
+# <=> print(
+#       and_then(
+#            std.general.Then,
+#            lambda x: [x] * 20,
+#            sum))
 
 ```
 
