public static string EncryptGenerateRandomString(ASCIIMode mode, int length)
{
if (length < 1)
{
length = 8;
}
string result = string.Empty;
for (int i = 0; i < length; i++)
{
result += EncryptGenerateRandomChar(mode);
}
return(result);
}
public static char EncryptGenerateRandomChar(ASCIIMode mode)
{
//这里下界是0，随机数可以取到，上界应该是75，因为随机数取不到上界，也就是最大74，符合我们的题意
string str = "1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ~!@#$%^&*()_+";
int chaNum = 75;
switch (mode)
{
case ASCIIMode.DigitalLowerUpper:
str = "1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
chaNum = 62;
break;
case ASCIIMode.Digital:
str = "1234567890";
chaNum = 10;
break;
case ASCIIMode.DigitalLower:
str = "1234567890abcdefghijklmnopqrstuvwxyz";
chaNum = 36;
break;
case ASCIIMode.DigitalUpper:
str = "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ";
chaNum = 36;
break;
case ASCIIMode.LowerUpper:
str = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
chaNum = 52;
break;
case ASCIIMode.Lower:
str = "abcdefghijklmnopqrstuvwxyz";
chaNum = 26;
break;
case ASCIIMode.Upper:
str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
chaNum = 26;
break;
}
Random r = new Random();
return(str.Substring(r.Next(0, chaNum), 1)[0]);
}
public static string EncryptGenerateRandomString(ASCIIMode mode, int length)
{
if (length < 1)
{
length = 8;
}
string result = string.Empty;
for (int i = 0; i < length; i++)
{
result += EncryptGenerateRandomChar(mode);
}
return result;
}
public static char EncryptGenerateRandomChar(ASCIIMode mode)
{
//这里下界是0，随机数可以取到，上界应该是75，因为随机数取不到上界，也就是最大74，符合我们的题意
string str = "1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ~!@#$%^&*()_+";
int chaNum = 75;
switch (mode)
{
case ASCIIMode.DigitalLowerUpper:
str = "1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
chaNum = 62;
break;
case ASCIIMode.Digital:
str = "1234567890";
chaNum = 10;
break;
case ASCIIMode.DigitalLower:
str = "1234567890abcdefghijklmnopqrstuvwxyz";
chaNum = 36;
break;
case ASCIIMode.DigitalUpper:
str = "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ";
chaNum = 36;
break;
case ASCIIMode.LowerUpper:
str = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
chaNum = 52;
break;
case ASCIIMode.Lower:
str = "abcdefghijklmnopqrstuvwxyz";
chaNum = 26;
break;
case ASCIIMode.Upper:
str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
chaNum = 26;
break;
}
Random r = new Random();
return str.Substring(r.Next(0, chaNum), 1)[0];
}
