From 734d9a9f77339ea2f378d73439bdff352ebfcbf6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=99=BD=E8=8C=B6=E6=B8=85=E6=AC=A2?=
 <go_developer@163.com>
Date: Fri, 21 Mar 2025 18:15:44 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E8=8E=B7=E5=8F=96=E5=90=84?=
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---
 data_type.go | 120 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)

diff --git a/data_type.go b/data_type.go
index 09ace11..cfb4030 100644
--- a/data_type.go
+++ b/data_type.go
@@ -310,3 +310,123 @@ func getMergeDataTypeList(dataTypeList ...[]DataType) []DataType {
 	}
 	return res
 }
+
+// GetDataTypeDefaultValue 获取不同类型的默认值
+func GetDataTypeDefaultValue(dataType string) any {
+	switch dataType {
+	case DataTypeInt.String():
+		return int(0)
+	case DataTypeInt8.String():
+		return int8(0)
+	case DataTypeInt16.String():
+		return int16(0)
+	case DataTypeInt32.String():
+		return int32(0)
+	case DataTypeInt64.String():
+		return int64(0)
+	case DataTypeUint.String():
+		return uint(0)
+	case DataTypeUint8.String():
+		return uint8(0)
+	case DataTypeUint16.String():
+		return uint16(0)
+	case DataTypeUint32.String():
+		return uint32(0)
+	case DataTypeUint64.String():
+		return uint64(0)
+	case DataTypeFloat32.String():
+		return float32(0)
+	case DataTypeFloat64.String():
+		return float64(0)
+	case DataTypeBool.String():
+		return false
+	case DataTypeString.String():
+		return ""
+	case DataTypeIntPtr.String():
+		return new(int)
+	case DataTypeInt8Ptr.String():
+		return new(int8)
+	case DataTypeInt16Ptr.String():
+		return new(int16)
+	case DataTypeInt32Ptr.String():
+		return new(int32)
+	case DataTypeInt64Ptr.String():
+		return new(int64)
+	case DataTypeUintPtr.String():
+		return new(uint)
+	case DataTypeUint8Ptr.String():
+		return new(uint8)
+	case DataTypeUint16Ptr.String():
+		return new(uint16)
+	case DataTypeUint32Ptr.String():
+		return new(uint32)
+	case DataTypeUint64Ptr.String():
+		return new(uint64)
+	case DataTypeFloat32Ptr.String():
+		return new(float32)
+	case DataTypeFloat64Ptr.String():
+		return new(float64)
+	case DataTypeBoolPtr.String():
+		return new(bool)
+	case DataTypeMapStrAny.String():
+		return new(map[string]any)
+	case DataTypeMapAnyAny.String():
+		return new(map[any]any)
+	case DataTypeMapStrBool.String():
+		return new(map[string]bool)
+	case DataTypeMapStrInt.String():
+		return new(map[string]int)
+	case DataTypeMapStrFloat.String():
+		return new(map[string]float64)
+	case DataTypeMapStrUint.String():
+		return new(map[string]uint)
+	case DataTypeMapStrSlice.String():
+		return new(map[string][]any)
+	case DataTypeMapStrStr.String():
+		return new(map[string]string)
+	case DataTypeSliceAny.String():
+		return new([]any)
+	case DataTypeSliceString.String():
+		return new([]string)
+	case DataTypeSliceBool.String():
+		return new([]bool)
+	case DataTypeSliceInt.String():
+		return new([]int)
+	case DataTypeSliceUint.String():
+		return new([]uint)
+	case DataTypeSliceFloat.String():
+		return new([]float64)
+	case DataTypeSliceMapAnyAny.String():
+		// map[any]any 序列化会有问题，当做 map[string]any 处理
+		return new([]map[string]any)
+	case DataTypeSliceMapStringAny.String():
+		return new([]map[string]any)
+	default:
+		// 序列化之后的map
+		for _, dataTypeItem := range DataTypeMapMarshal {
+			if dataTypeItem.String() == dataType {
+				return ""
+			}
+		}
+		// 序列化之后的slice
+		for _, dataTypeItem := range DataTypeSliceMarshal {
+			if dataTypeItem.String() == dataType {
+				return ""
+			}
+		}
+		// 指定分隔符分割的slice
+		for _, dataTypeItem := range DataTypeSliceSplit {
+			if dataTypeItem.String() == dataType {
+				return ""
+			}
+		}
+		// 未枚举的slice类型用any接收
+		for _, dataTypeItem := range DataTypeSlice {
+			if dataTypeItem.String() == dataType {
+				return new([]any)
+			}
+		}
+	}
+	// 未枚举的一律用any接收
+	return *new(any)
+}