如果用户输入的数字不是数字，我会得到未处理的异常：
System.FormatException：输入字符串的格式不正确。
有人可以解释我做错了吗？
这是我的代码C＃.NET：
private static int WeightIFeMale()
{
Console.WriteLine("How Much Do You Weigh?", Environment.NewLine);
int femaleWeight = int.Parse(Console.ReadLine());
if
(0 >= femaleWeight && 80 <= femaleWeight)
{
Console.WriteLine("Damn, how much crack are you smoking?", Environment.NewLine);
}
else if
(81 >= femaleWeight && 110 <= femaleWeight)
{
Console.WriteLine("What the ****, are you a midget *****?", Environment.NewLine);
}
else if
(111 >= femaleWeight && 140 <= femaleWeight)
{
Console.WriteLine("Holy shit, I have some protein bar coupons you can have!", Environment.NewLine);
}
else if
(141 >= femaleWeight && 160 <= femaleWeight)
{
Console.WriteLine("Bro you need to hit the Gym, ASAP!", Environment.NewLine);
}
else if
(161 >= femaleWeight && 200 <= femaleWeight)
{
Console.WriteLine("Really!!!, can I hit the Gym with you?", Environment.NewLine);
}
else if
(201 >= femaleWeight && 240 <= femaleWeight)
{
Console.WriteLine("Do you Have a small ****, Steroids are a mother @#$%^&&", Environment.NewLine);
}
else if
(241 >= femaleWeight && 999 <= femaleWeight)
{
Console.WriteLine("My condolences!", Environment.NewLine);
}
else if
(femaleWeight >= 1000)
{
Console.WriteLine("There is absolutely no way that you weigh {0} lbs, so stop ******* around!", femaleWeight, Environment.NewLine);
}
else
{
Console.Write("What the **** is {0} It has to be a number numb nuts, lets try that again!", Environment.NewLine);
WeightIFeMale();
}
return femaleWeight;
}
答案 0 :(得分：1)
这里当你提供的值似乎不是数值时int.Parse（）不能将它解析为INT。请参阅此文Int32.Parse Method (String)并查看例外表 FormatException说明。所以，1。你有更好的尝试捕获功能。尝试以下建议，它正在工作。 2.您也可以使用int.TryParse方法
方式1。使用try catch语句删除此语句int femaleWeight = int.Parse(Console.ReadLine());。
private static int WeightIFeMale()
{
Console.WriteLine("How Much Do You Weigh?", Environment.NewLine);
//int femaleWeight = int.Parse(Console.ReadLine());
string weigt_st = Console.ReadLine();
int femaleWeight = 0;
try
{
femaleWeight = int.Parse(weigt_st);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
if (0 >= femaleWeight && 80 <= femaleWeight)
{
Console.WriteLine("Damn, how much crack are you smoking?", Environment.NewLine);
}
else if (81 >= femaleWeight && 110 <= femaleWeight)
{
Console.WriteLine("What the ****, are you a midget *****?", Environment.NewLine);
}
else if (111 >= femaleWeight && 140 <= femaleWeight)
{
Console.WriteLine("Holy shit, I have some protein bar coupons you can have!", Environment.NewLine);
}
else if (141 >= femaleWeight && 160 <= femaleWeight)
{
Console.WriteLine("Bro you need to hit the Gym, ASAP!", Environment.NewLine);
}
else if (161 >= femaleWeight && 200 <= femaleWeight)
{
Console.WriteLine("Really!!!, can I hit the Gym with you?", Environment.NewLine);
}
else if
(201 >= femaleWeight && 240 <= femaleWeight)
{
Console.WriteLine("Do you Have a small ****, Steroids are a mother @#$%^&&", Environment.NewLine);
}
else if
(241 >= femaleWeight && 999 <= femaleWeight)
{
Console.WriteLine("My condolences!", Environment.NewLine);
}
else if
(femaleWeight >= 1000)
{
Console.WriteLine("There is absolutely no way that you weigh {0} lbs, so stop ******* around!", femaleWeight, Environment.NewLine);
}
else
{
Console.Write("What the **** is {0} It has to be a number numb nuts, lets try that again!", Environment.NewLine);
WeightIFeMale();
}
return femaleWeight;
}
或方式2。使用此代码删除此int femaleWeight = int.Parse(Console.ReadLine());代码
int femaleWeight = 0;
int.TryParse(Console.ReadLine(), out femaleWeight);
答案 1 :(得分：0)
由于int femaleWeight = int.Parse(Console.ReadLine());
int.Parse方法将抛出FormatException。
答案 2 :(得分：0)
int femaleWeight;
if (!int.TryParse(Console.ReadLine(), out femaleWeight)) {
Console.WriteLine("Please enter your weight in US pounds")
}
else if (...)
答案 3 :(得分：0)
This is how it worked for me:
private static int WeightIFeMale()
{
Console.WriteLine("How Much Do You Weigh?", Environment.NewLine);
}
int femaleWeight;
if (!int.TryParse(Console.ReadLine(), out femaleWeight)) //I deleted the else statement.
{
Console.Write("What the **** is {0} It has to be a number numb nuts, lets try that again!", Environment.NewLine);
Console.Write(Environment.NewLine);
WeightIFeMale();
}
else if
(femaleWeight >= 0 && femaleWeight <= 80)
{
Console.WriteLine("Damn, how much crack are you smoking?", Environment.NewLine);
}
else if
(femaleWeight >= 81 && femaleWeight <= 110)
{
Console.WriteLine("What the ****, are you a midget *****?", Environment.NewLine);
}
else if
(femaleWeight >= 111 && femaleWeight <= 140)
{
Console.WriteLine("Holy ***, I have some protein bar coupons you can have!", Environment.NewLine);
}
else if
(femaleWeight >= 141 && femaleWeight <= 160)
{
Console.WriteLine("Bro you need to hit the Gym, ASAP!", Environment.NewLine);
}
else if
(femaleWeight >= 161 && femaleWeight <= 200)
{
Console.WriteLine("Really!!!, can I hit the Gym with you?", Environment.NewLine);
}
else if
(femaleWeight >= 201 && femaleWeight <= 240)
{
Console.WriteLine("Do you Have a small ****, Steroids are a mother @#$%^&&", Environment.NewLine);
}
else if
(femaleWeight >= 241 && femaleWeight <= 999)
{
Console.WriteLine("My condolences!", Environment.NewLine);
}
else if
(femaleWeight >= 1000)
{
Console.WriteLine("There is absolutely no way that you weigh {0} lbs, so stop ******* around!", femaleWeight, Environment.NewLine);
}