Example of C language-based bank Printing Program

Introduction
The analog bank's capital amount output is as follows:
345
Sanyunwu

Method/step
First open VC ++

File> New

Create a blank C ++ document

First declare the header file

Copy codeThe Code is as follows: # include <stdio. h>

Declare VariablesCopy codeThe Code is as follows: char * p [10] = {"0", "1", "2", "3", "4", "5", "6 ", "7", "8", "9 "};

Since user-defined functions are used, declareCopy codeCode: void PrintInterger (char a [], int len);/* output integer part */
Void PrintDecimal (char a [], int len);/* output fractional part */

Function 1 is used to output the integer part. It mainly uses switch case for matching and conversion.Copy codeThe Code is as follows: void PrintInterger (char a [], int len)

{

Int I, j, tag1, tag2, tag3;

Tag1 = (a [len-6] = '0' & a [len-7] = '0' & a [len-8] = '0 ');

Tag2 = (a [len-14] = '0' & a [len-15] = '0' & a [len-16] = '0 ');

Tag3 = (a [len-22] = '0' & a [len-23] = '0' & a [len-24] = '0 ');

Printf ("Your money is \ n ");

For (I = 0, j = len; I <len & j> 0; I ++, j --)

{

If (a [I] = '0' & I! = Len-1)

{

If (j = 5 & tag1) | (j = 13 & tag2) | (j = 21 & tag3 ))

;

Else if (j = 21 &&! Tag3) | (j = 5 &&! Tag1) | (j = 13 &&! Tag2 ))

Printf ("Ten Thousand ");

Else if (j = 9 | j = 17)

Printf (" ");

Else if (a [I + 1] = '0' & I! = Len-1)

;

Else if (a [I + 1]! = '0' & I! = Len-1)

Printf ("0 ");

Else

;

}

Else if (a [I] = '0' & I = len-1)

;

Else if (a [I]! = '0 ')

{

/* Conversion from Arabic numerals to Chinese characters */

Switch (a [I])

{

Case '1': printf ("% s", p [1]); break;

Case '2': printf ("% s", p [2]); break;

Case '3': printf ("% s", p [3]); break;

Case '4': printf ("% s", p [4]); break;

Case '5': printf ("% s", p [5]); break;

Case '6': printf ("% s", p [6]); break;

Case '7': printf ("% s", p [7]); break;

Case '8': printf ("% s", p [8]); break;

Case '9': printf ("% s", p [9]); break;

Default: printf ("error"); break;

}

/* Output the corresponding unit */

Switch (j)

{

Case 2:

Case 6:

Case 10:

Case 14:

Case 18:

Case 22: printf ("% s", "10"); break;

Case 3:

Case 7:

Case 11:

Case 15:

Case 19:

Case 23: printf ("% s", "Hundred"); break;

Case 4:

Case 8:

Case 12:

Case 16:

Case 20:

Case 24: printf ("% s", "thousands"); break;

Case 5:

Case 13:

Case 21: printf ("% s", "Ten Thousand"); break;

Case 9:

Case 17: printf ("% s", ""); break;

Default: printf ("% s", ""); break;

}

}

}

Printf ("% s", "circle ");

}

Function 2 is used to output the decimal part. It mainly uses switch case for matching conversion.Copy codeCode: void PrintDecimal (char a [], int len)

{

Int I;

For (I = 0; I <len; I ++)

{

/* Conversion from Arabic numerals to Chinese characters */

Switch (a [I])

{

Case '0': printf ("% s", p [0]); break;

Case '1': printf ("% s", p [1]); break;

Case '2': printf ("% s", p [2]); break;

Case '3': printf ("% s", p [3]); break;

Case '4': printf ("% s", p [4]); break;

Case '5': printf ("% s", p [5]); break;

Case '6': printf ("% s", p [6]); break;

Case '7': printf ("% s", p [7]); break;

Case '8': printf ("% s", p [8]); break;

Case '9': printf ("% s", p [9]); break;

Default: printf ("% s", p [0]); break;

}

/* Output unit */

Switch (I)

{

Case 0: printf ("% s", ""); break;

Case 1: printf ("% s", "points"); break;

Case 2: printf ("% s", ""); break;

Case 3: printf ("% s", ""); break;

Default:; break;

}

}

}

Main function, the role of variables I explainedCopy codeThe Code is as follows: int main (void)

{

Char Number [128];/* used to store user input numbers */

Char Interger [64], Decimal [64];/* store the integer and Decimal parts of the input number respectively */

Int lenI, lenD;/* respectively record the length of the integer and decimal part */

Int I, j;

Puts ("************************************* ");

Puts ("* This is a print program *");

Puts ("* used in a bank *");

Puts ("************************************* ");

Puts ("please input the money :");

Gets (Number );

I = 0; j = 0;

/* Process the integer part of the input number */

While (Number [I]! = '/0') & (Number [I]! = '.') & (Number [I]> = '0') & (Number [I] <= '9 '))

{

Interger [I] = Number [I];

I ++;

}

LenI = I;

If (Number [I] = '.')

{

I ++;

/* Process the fractional part of the input number */

While (Number [I]! = '/0' & Number [I]> = '0' & Number [I] <= '9 ')

{

Decimal [j ++] = Number [I ++];

}

/* Four digits after the decimal point */

If (j> = 4) & (Decimal [4]> '5 '))

{

Decimal [3] + = 1;/* perform the 4-in-5 operation */

Decimal [4] = '/0 ';

}

}

If (j> = 4)

LenD = 4;

Else

LenD = j;

PrintInterger (Interger, lenI );

PrintDecimal (Decimal, lenD );

Printf ("\ n ");

Return 0;

}

Running result