feat(Go-Tool)：

2020/12/16: 添加YAML和结构体转换工具

vendor/github.com/ahmetb/go-linq/except.go

@@ -1,8 +1,7 @@
 package linq
 
-// Except produces the set difference of two sequences.
-// The set difference is the members of the first sequence
-// that don't appear in the second sequence.
+// Except produces the set difference of two sequences. The set difference is
+// the members of the first sequence that don't appear in the second sequence.
 func (q Query) Except(q2 Query) Query {
 	return Query{
 		Iterate: func() Iterator {
@@ -27,12 +26,11 @@ func (q Query) Except(q2 Query) Query {
 	}
 }
 
-// ExceptBy invokes a transform function on each element of a collection
-// and produces the set difference of two sequences.
-// The set difference is the members of the first sequence
-// that don't appear in the second sequence.
-func (q Query) ExceptBy(
-	q2 Query, selector func(interface{}) interface{}) Query {
+// ExceptBy invokes a transform function on each element of a collection and
+// produces the set difference of two sequences. The set difference is the
+// members of the first sequence that don't appear in the second sequence.
+func (q Query) ExceptBy(q2 Query,
+	selector func(interface{}) interface{}) Query {
 	return Query{
 		Iterate: func() Iterator {
 			next := q.Iterate()
@@ -57,3 +55,25 @@ func (q Query) ExceptBy(
 		},
 	}
 }
+
+// ExceptByT is the typed version of ExceptBy.
+//
+//   - selectorFn is of type "func(TSource) TSource"
+//
+// NOTE: ExceptBy has better performance than ExceptByT.
+func (q Query) ExceptByT(q2 Query,
+	selectorFn interface{}) Query {
+	selectorGenericFunc, err := newGenericFunc(
+		"ExceptByT", "selectorFn", selectorFn,
+		simpleParamValidator(newElemTypeSlice(new(genericType)), newElemTypeSlice(new(genericType))),
+	)
+	if err != nil {
+		panic(err)
+	}
+
+	selectorFunc := func(item interface{}) interface{} {
+		return selectorGenericFunc.Call(item)
+	}
+
+	return q.ExceptBy(q2, selectorFunc)
+}