[問題] scanf
遇到的問題： (題意請描述清楚)
以下是目前寫的程式
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
double MyRand(double a, double b);
double cost(double ice,double pearl, double sugar);
struct sCustomer
{
double IdealIce;
double IdealPearl;
double IdealSugar;
};
int main()
{
int invest;
double x, RealIce, RealPearl, RealSugar;
struct sCustomer first;
srand(1234);
printf("輸入欲投資的金額(萬元):");
scanf("%d",&invest);
printf("配方(依序輸入冰、珍珠及糖):");
scanf("%f %f %f",&RealIce,&RealPearl,&RealSugar);
x = cost(RealIce, RealPearl, RealSugar);
printf("The cost is %f\n",x);
first.IdealIce = MyRand(10.0,30.0);
first.IdealPearl = MyRand(5.0,20.0);
first.IdealSugar = MyRand(10.0,22.0);
printf("The IdealIce is %f\n",first.IdealIce);
printf("The IdealPearl is %f\n",first.IdealPearl);
printf("The IdealSugar is %f\n",first.IdealSugar);
system("pause");
return(0);
}
//回傳一個a至b的變數
double MyRand(double a, double b)
{
return((b-a)*rand()/(double)RAND_MAX+a);
}
//計算成本
double cost(double ice,double pearl, double sugar)
{
return(ice*0.01 + pearl*0.1 + sugar*0.5 + 0.5);
}
在debug的時候出現 warning C4996: 'scanf': This function or variable may be
unsafe. Consider using scanf_s instead.
To disable deprecation, use _CRT_SECURE_NO_WARNINGS.
See online help for details.
在我的寫法中 scanf 使用上不知道有何處不完整 看起來沒有錯耶@@
我在輸出x值時，卻出現亂碼
之後我先給RealIce, RealPearl, RealSugar的初始值而不用scanf
x就對了
所以我想應該是scanf的地方有錯 可是不知道應如何修正
謝謝各位幫忙
開發平台： (例: VC++ or gcc/g++ or Dev-C++, Windows or Linux)
visual studio 2008
補充說明：
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