String Plus decryption

Title Description

1, the input string is added and decrypted, and output.

2 Encryption methods are:

• When the content is a number then add 1, such as 0 replace the 2,9 replacement 0;

• Other characters do not change.

3, the decryption method is the inverse process of encryption.

Interface Description:

Implement interfaces, each of which implements 1 basic operations:

• voidEncrypt (Char Aucpassword[], char aucresult[] ): In this function, implement thestringEncrypt and output

Description

1 , the string ends with a.

2 , the string is up to 100 characters long.

• int Unencrypt (char result[], char password[]): implement string decryption and output in this function

Description

1 , the string ends with a.

2 , the string is up to 100 characters long.

Full code:

/****************************************************************************** Copyright (C), 2001-2011, Huawei       Tech. Co., Ltd. ****************************************************************************** File name:version                : Author:created:2012/03/12 last Modified:Description:Function List: HISTORY:1.DATE:2012/03/12 Author:Modification:Created file******************************* /#include <stdlib.h> #include <string.h> #include < STDIO.H&GT;//1, the input string is added and decrypted, and output. 2 The Encryption method is://When the content is an English letter is replaced with the letter of the latter letter, while the letter conversion case, such as the letter A is replaced by B; When the letter z is replaced by the a;//when the content is a number 1, such as 0 to replace the replacement 2,9 replacement 0;// Other characters do not change. 3, the decryption method is the inverse process of encryption.         int Encrypt (char password[], char result[]) {/* code implemented HERE */while (*password!= ' + ') {if (*password== ' 9 ') {        *result++= ' 0 ';      password++; } else if (*password>= ' 0 ' &&*password< ' 9 ') {*result++=*password+1;      password++;        } else if (*password== ' Z ') {*result++= ' a ';      password++;        } else if (*password== ' z ') {*result++= ' A ';      password++;        } else if (*password>= ' A ' &&*password< ' Z ') {*result++=*password+33;      password++;        } else if (*password>= ' a ' &&*password< ' Z ') {*result++=*password-31;      password++;            } else *result++=*password++;  } *result= ' + '; return 0;} int Unencrypt (char result[], char password[]) {/* code implemented HERE */while (*result!= '} ') {if (*result>= ' 1 ' &&am        p;*result<= ' 9 ') {*password++=*result-1;      result++;        } else if (*result== ' 0 ') {*password++= ' 9 ';      result++;        } else if (*result>= ' B ' &&*result<= ' Z ') {*password++=*result-33;      result++; } else if (*result== ' a ') {*password++= ' Z ';      result++;        } else if (*result>= ' B ' &&*result<= ' Z ') {*password++=*result+31;      result++;        } else if (*result== ' A ') {*password++= ' z ';      result++;    } else *password++=*result++;  } *password= ' + '; return 0;}

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String Plus decryption