关于动态添加存储过程的错误

有这么一个存储过程：

1ALTER PROCEDURE [dbo].[ap_BuyAndSaleAction]

2 @DataAction int,

3 @ID int = 0,

4 @RentWay nvarchar(100),

5 @City nvarchar(100),

6 @District nvarchar(100),

7 @Title nvarchar(100),

8 @Address nvarchar(1000),

9 @XiaoQu nvarchar(100),

10-- @AddTime datetime,

11 @UserID int,

12 @HouseType tinyint,

13 @Money money,

14 @Floor tinyint,

15 @TotalFloor tinyint,

16 @MainJi smallint,

17 @NianDai nvarchar(100),

18 @Validity smallint,

19 @ZhongJie tinyint,

20 @ZhuangXiu nvarchar(1000),

21 @PayMent nvarchar(500),

22 @ChaoXiang nvarchar(100),

23 @ChanQuan nvarchar(100),

24 @KaiFaShang nvarchar(100),

25 @Contact nvarchar(100),

26 @Tel varchar(20),

27 @Mobile varchar(20),

28 @Memo nvarchar(max),

29 @Memo1 nvarchar(50),

30 @Memo2 nvarchar(50),

31 @Memo3 nvarchar(50),

32 @Flag tinyint,

33 @TableNum nvarchar(20)

34AS

35if @DataAction=0

36BEGIN

37 declare @select varchar(max)

38 set @select = 'insert into [tb_'+rtrim(@TableNum)+'_BuyAndSale]

39 (

40 [RentWay],

41 [City],

42 [District],

43 [Title],

44 [Address],

45 [XiaoQu],

46 [UserID],

47 [HouseType],

48 [Money],

49 [Floor],

50 [TotalFloor],

51 [MainJi],

52 [NianDai],

53 [Validity],

54 [ZhongJie],

55 [ZhuangXiu],

56 [PayMent],

57 [ChaoXiang],

58 [ChanQuan],

59 [KaiFaShang],

60 [Contact],

61 [Tel],

62 [Mobile],

63 [Memo],

64 [Memo1],

65 [Memo2],

66 [Memo3],

67 [Flag]

68 )

69 values(

70 '''+@RentWay+''',

71 '''+@City+''',

72 '''+@District+''',

73 '''+@Title+''',

74 '''+@Address+''',

75 '''+@XiaoQu+''',

76 '+rtrim(@UserID)+',

77 '+rtrim(@HouseType)+',

78 '+rtrim(@Money)+',

79 '+rtrim(@Floor)+',

80 '+rtrim(@TotalFloor)+',

81 '+rtrim(@MainJi)+',

82 '''+ @NianDai+''',

83 '+rtrim(@Validity)+',

84 '+rtrim(@ZhongJie)+',

85 '''+@ZhuangXiu+''',

86 '''+@PayMent+''',

87 '''+@ChaoXiang+''',

88 '''+@ChanQuan+''',

89 '''+@KaiFaShang+''',

90 '''+@Contact+''',

91 '''+@Tel+''',

92 '''+@Mobile+''',

93 '''+@Memo+''',

94 '''+@Memo1+''',

95 '''+@Memo2+''',

96 '''+@Memo3+''',

97 '+rtrim(@Flag)+')'

98 EXEC(@select)

99 set @ID=scope_identity()

该存储过程实现根据传入的@TableNum值，动态的选择数据库的表。然后执行插入工作。一开始时，在如下代码中

1values(

2 '''+@RentWay+''',

3 '''+@City+''',

4 '''+@District+''',

5 '''+@Title+''',

6 '''+@Address+''',

7 '''+@XiaoQu+''',

8 '+rtrim(@UserID)+',

9 '+rtrim(@HouseType)+'
只是写成了：

values(

'+@RentWay+',

'+@City+',

'+@District+',

'+@Title+',

'+@Address+',

'+@XiaoQu+',

'+UserID+',

'+HouseType+'
在调试时出现了很多意想不到的错误。现在把这个错误贴出，用于提醒自己