public
class
Rand
{
///
<summary>
///
生成随
机数字
///
</summary>
///
<param name="length">
生成长度
</param>
///
<returns></returns>
public
static
string
Number(
int
Length)
{
return
Number(Length,
false
);
}
///
<summary>
///
生成随
机数字
///
</summary>
///
<param name="Length">
生成长度
</param>
///
<param name="Sleep">
是否要在生成前将当前线程阻止以避免重复
</param>
///
<returns></returns>
public
static
string
Number(
int
Length,
bool
Sleep)
{
if
(Sleep)
System.Threading.Thread.Sleep(
3
);
string
result
=
""
;
System.Random random
=
new
Random();
for
(
int
i
=
0
; i
<
Length; i
++
)
{
result
+=
random.Next(
10
).ToString();
}
return
result;
}
///
<summary>
///
生成随
机字母与数字
///
</summary>
///
<param name="IntStr">
生成长度
</param>
///
<returns></returns>
public
static
string
Str(
int
Length)
{
return
Str(Length,
false
);
}
///
<summary>
///
生成随
机字母与数字
///
</summary>
///
<param name="Length">
生成长度
</param>
///
<param name="Sleep">
是否要在生成前将当前线程阻止以避免重复
</param>
///
<returns></returns>
public
static
string
Str(
int
Length,
bool
Sleep)
{
if
(Sleep)
System.Threading.Thread.Sleep(
3
);
char
[] Pattern
=
new
char
[] {
'
0
'
,
'
1
'
,
'
2
'
,
'
3
'
,
'
4
'
,
'
5
'
,
'
6
'
,
'
7
'
,
'
8
'
,
'
9
'
,
'
A
'
,
'
B
'
,
'
C
'
,
'
D
'
,
'
E
'
,
'
F
'
,
'
G
'
,
'
H
'
,
'
I
'
,
'
J
'
,
'
K
'
,
'
L
'
,
'
M
'
,
'
N
'
,
'
O
'
,
'
P
'
,
'
Q
'
,
'
R
'
,
'
S
'
,
'
T
'
,
'
U
'
,
'
V
'
,
'
W
'
,
'
X
'
,
'
Y
'
,
'
Z
'
};
string
result
=
""
;
int
n
=
Pattern.Length;
System.Random random
=
new
Random(
~
unchecked
((
int
)DateTime.Now.Ticks));
for
(
int
i
=
0
; i
<
Length; i
++
)
{
int
rnd
=
random.Next(
0
,n);
result
+=
Pattern[rnd];
}
return
result;
}
///
<summary>
///
生成随
机纯字母随机数
///
</summary>
///
<param name="IntStr">
生成长度
</param>
///
<returns></returns>
public
static
string
Str_char(
int
Length)
{
return
Str_char(Length,
false
);
}
///
<summary>
///
生成随
机纯字母随机数
///
</summary>
///
<param name="Length">
生成长度
</param>
///
<param name="Sleep">
是否要在生成前将当前线程阻止以避免重复
</param>
///
<returns></returns>
public
static
string
Str_char(
int
Length,
bool
Sleep)
{
if
(Sleep) System.Threading.Thread.Sleep(
3
);
char
[] Pattern
=
new
char
[] {
'
A
'
,
'
B
'
,
'
C
'
,
'
D
'
,
'
E
'
,
'
F
'
,
'
G
'
,
'
H
'
,
'
I
'
,
'
J
'
,
'
K
'
,
'
L
'
,
'
M
'
,
'
N
'
,
'
O
'
,
'
P
'
,
'
Q
'
,
'
R
'
,
'
S
'
,
'
T
'
,
'
U
'
,
'
V
'
,
'
W
'
,
'
X
'
,
'
Y
'
,
'
Z
'
};
string
result
=
""
;
int
n
=
Pattern.Length;
System.Random random
=
new
Random(
~
unchecked
((
int
)DateTime.Now.Ticks));
for
(
int
i
=
0
; i
<
Length; i
++
)
{
int
rnd
=
random.Next(
0
, n);
result
+=
Pattern[rnd];
}
return
result;
}
}