当我构建此解决方案时，#include 库带有红色下划线，我收到以下错误：
错误 1 错误 MSB8008：指定的平台工具集 (v110) 未安装或无效。请确保选择了受支持的 PlatformToolset 值。C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\Platforms\Win32\Microsoft.Cpp.Win32.Targets 518 6 G00290342BrianVarley.c
一些帮助将不胜感激。
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <string>
#include <windows.h>
#include <ctime>
#include <string.h>
using namespace std;
#define MAX 80
//declaring functions
int showMenu();
void generatePass();
void validatePass();
int countLetters(char *,int *,int *,int *,int *);
main()
{
int iChoice;
// have menu appear, user makes decision, do work, reshow menu
// do this until user enters 5
do
{
iChoice = showMenu();
}while(iChoice != 3);
printf("\n\n\n");
system("pause");
}//end of main
//Methods placed here:
//showMenu method calls program menu,either 1.generate password,2.enter password and validate. or 3.exit(close program)
int showMenu()
{
int iChoice;
system("cls");
printf("\n\n\t\tWelcome to Password Generator and Validator\n\n");
printf("\n\t\t1. Generate");
printf("\n\t\t2. Validate");
printf("\n\t\t3. Exit");
printf("\n\n\t\tEnter your menu choice: ");
fflush(stdin);
scanf("%d", &iChoice);
// user enters one of 3 values
// generate,validate or exit program
switch(iChoice)
{
case 1: // generate
{
generatePass();
string random_str = generatePass(15);
printf( "\n\n\t\tYour new password is : ","%d",random_str);
break;
}
case 2: // validate
{
validatePass();
break;
}
case 3: // exit
{
printf("\n\nProgram exiting!...");
system.exit(0);
break;
}
default:
{
break;
}
}//end of switch
return(iChoice);
} //end of showMenu
//method to generate a random password for user following password guidelines.
string generatePass(int length)
{
printf("\n\n\t\tGenerate Password selected ");
printf("\n\n\t\tPassword creation in progress... ");
srand(time(0));
string str = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!£$%^&*()_+=#@;";
int pos;
while(str.size() != length) {
pos = ((rand() % (str.size() - 1)));
str.erase (pos, 1);
}
return str;
}//end of generatePass method.
//method to validate a user generated password following password guidelines.
validatePass()
{
char password[MAX+1];
int iChar,iUpper,iLower,iSymbol,iNumber;
//shows user password guidelines
printf("\n\n\t\tPassword rules: ");
printf("\n\n\t\t 1. Passwords must be at least 9 characters long and less than 15 characters. ");
printf("\n\n\t\t 2. Passwords must have at least 2 numbers in them.");
printf("\n\n\t\t 3. Passwords must have at least 2 uppercase letters and 2 lowercase letters in them.");
printf("\n\n\t\t 4. Passwords must have at least 1 symbol in them (eg ?, $, £, %).");
printf("\n\n\t\t 5. Passwords may not have small, common words in them eg hat, pow or ate.");
//gets user password input
printf("\n\n\t\tEnter your password following password rules: ");
gets(password);
iChar = countLetters(inString,&iUpper,&iLower,&iSymbol,&iNumber,&iTotal);
if(iUpper < 2)
{
printf("Not enough uppercase letters!!!\n");
}
else if(iLower < 2)
{
printf("Not enough lowercase letters!!!\n");
}
else if(iSymbol < 1)
{
printf("Not enough symbols!!!\n");
}
else if(iNumber < 2)
{
printf("Not enough numbers!!!\n");
}
else if(iTotal < 9 && iTotal > 15)
{
printf("Not enough characters!!!\n");
}
printf("\n\n\n Your new password is verified " + password);
printf("\n\n\n");
system("pause");
}//end validatePass method
int countLetters(char * Password,int * Upper,int * Lower,int * Symbol,int * Number)
{
int iTotal = 0,iC,tU = 0,tL = 0,tS = 0,tN = 0;
//strlen- function that returns length
for (iC = 0;iC < strlen(Password);iC++)
{
printf("%d",Password[iC]);
//uppercase letters are in the range 65 - 90
//lowercase letters are in the range 97 - 122
//check upper case
if((Password[iC] < 64) && (Password[iC] < 91))
{
tU++;
iTotal++;
}
else if((Password[iC] > 96) && (Password[iC] < 123))
{
tL++;
iTotal++;
}
else if((Password[iC] > 32) && (Password[iC] < 48))
{
tS++;
iTotal++;
}
else if((Password[iC] > 47) && (Password[iC] < 58))
{
tN++;
iTotal++;
}
*Upper = tU;/*set value at memory address = tU,passing by reference saves memory used.*/
*Lower = tL;
*Symbol = tS;
*Number = tN;
}//end for statement
return (iTotal);
}//end of countLetters