Feature/error code 迁移到各自的包下 (#67)

anyUtil/err_code.go

@@ -0,0 +1,24 @@
+package anyUtil
+
+import (
+	"errors"
+	"strconv"
+)
+
+var (
+	// ErrSyntax indicates that a value does not have the right syntax for the target type
+	// 指示值不具有目标类型的正确语法
+	ErrSyntax = strconv.ErrSyntax
+
+	// ErrType indicates that a value does not have the right syntax for the target type
+	// 指示值不具有目标类型的正确语法
+	ErrType = errors.New("unsupported type")
+
+	// ErrValOut Indicates that the range corresponding to the type is exceeded
+	// 表示超出了类型对应的范围
+	ErrValOut = errors.New("value out of range")
+
+	// ErrUnsignedInt The identity type is negative, so it cannot be converted to an unsigned integer
+	// 标识类型为负数，所以无法转为无符号的整型
+	ErrUnsignedInt = errors.New("cannot convert negative value to unsigned integer")
+)