About converting decimal to hexadecimal in VB programming

dim a as string 'Define variable a as a string.

dec_to_hex = "" 'The variable dec to hex is stored in decimal to hexadecimal is the result, and the initial value is an empty string do while dec > 0'If the decimal number dec to be converted is greater than 0, it goes into a loop.

a = cstr(dec mod 16) 'The remainder of dec to 16 is converted to a character and assigned to variable a

select case a 'If a is a string 10, the value is reassigned to a; If a is string 11, then reassign to b....If a is a string 15, the value is reassigned to f;

case "10": a = "a"

case "11": a = "b"

case "12": a = "c"

case "13": a = "d"

case "14": a = "e"

case "15": a = "f"

end select

dec_to_hex = a & dec_to_hex 'Concatenate the remainder a with dec to hex, and the purpose of a in front of it is the principle of dec = dec 16 in reverse order of remainders'Divide the converted decimal number dec by 16 to prepare for the next remainder, if it is not greater than 0, the loop ends

It's not okay to use the hex() function directly, it's so troublesome.

The ** to convert decimal to hexadecimal is as follows:

private sub form_click()

const aa = 8003100000918b0000000000000000000000008560"

Acacia) = xx

end sub

1. C language printing octal is printed out through %o, (composed of percent sign and lowercase letter o), first of all, the printout of octal 017 realizes the following **segment, **segment is to save an octal number first, and then output octal through %o.

2. After the ** segment is compiled, run to check the result, you can see that the result is 17, and the octal is printed out of the octal, and there will be no change.

3. The decimal number is printed out in octal format to see the result, first of all, the decimal number 20 is equal to 24 of the octal through the computer, as shown in the figure below, the left octal, the right decimal.

4. Then realize the following ** segment, the decimal number 20 is printed out in octal format, ** segment is to save a decimal number 20 first, and then output the octal by %o.

5. After the ** segment compilation is passed, you can see that the decimal number 20 is output in octal format and the result is 24, which is consistent with the result obtained by the computer.

6. The result of printing the number of hexadecimal in octal format is obtained by the computer first 0xaf which is equal to 257 in octal.

7. Then realize the following ** paragraph, hexadecimal digital 0xaf, and print out in octal format. **Segment is to save a hexadecimal digital 0xaf first, and then output the octal by %o.

In C++, you can use the Itoa() function to easily convert decimal numbers from 2 8 16 to 2 8 16 decimal numbers and store them into strings.

If you only want to output decimal numbers in 8 or 16 decimal format, you can use Cout's formatted output parameters OCT and HEX to complete the data output. (Defect: Binary format output is not supported).

char *itoa( int value, char *string,int radix);

Description: value: the data to be converted.

radix: the number of the converted base, which can be 2 8 10 16 and so on.

Special note: ITOA is not a standard C function, it is specific to Windows, if you want to write a cross-platform program, you can use SprintF(), which is used in the same way as PrintF().

Decimal is converted to arbitrary.

#include

using namespace std;

int main()

for(int k=m;k>=1;k--) output the converted sequence { if(s[k]>=10) if it is hexadecimal, etc., then output the corresponding letter cout<<(char)(s[k]+55);

else Otherwise output the digital cout < directly

Summary. Hexadecimal --- decimal: 16 is 16 into 1, but we only have the ten numbers 0 9, so we use the six letters A, B, C, D, E, F to represent 10, 11, 12, 13, 14, 15.

Letters are not case sensitive. The weight of the 0th digit of a hexadecimal number is 16 to the power of 0, the weight of the 1st digit is to the power of 16, and the weight of the 2nd digit is to the power of 16, so on the nth (n starts at 0) bit, if it is the number x (x is greater than or equal to 0, and x is less than or equal to 15, i.e., f) represents the size x * 16 to the nth power.

<>15 Convert hexadecimal 2c6 to decimal to write out the computer process) Hurry up. What five minutes.

Hurry up. Hello dear, I'm glad to answer for you, (15 converts hexadecimal 2c6 to decimal is 710 <>.)

I'll help you write about the process

What about the process. Good.

Hurry up. Hexadecimal --- decimal: 16 is 16 into 1, but we only have the ten numbers 0 9, so we use the six letters A, B, C, D, E, F to represent 10, 11, 12, 13, 14, 15.

Letters are not case sensitive. The weight of the 0th digit of the hexadecimal number is the 0th of 16, the weight of the 1st digit is 16 of the 1st of the hidden square, and the weight of the 2nd digit is the 2nd power of 16.