C# | Convert。ToSByte(字符串，表单提供者)方法
原文:https://www . geesforgeks . org/c-sharp-convert-tosbytestring-iformatprovider-method/
此方法用于使用指定的区域性特定格式信息，将数字的指定字符串表示形式转换为等效的 8 位有符号整数。
语法:
public static sbyte ToSByte (string value, IFormatProvider provider);
参数:
- 值:包含要转换的数字的字符串。
- 提供程序:它是一个提供区域性特定格式信息的对象。
返回值:该方法返回一个 8 位有符号整数，相当于值。
异常:
- 参数空异常:如果值为空。
- 格式异常:如果值不是由后跟数字序列(0 到 9)的可选符号组成。
- overoverowexception:如果值代表小于最小值或大于最大值的数字。
以下程序说明了转换的使用。ToSByte(字符串，表单提供者)方法:
例 1:
// C# program to demonstrate the
// Convert.ToSByte() Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
try {
// creating object of CultureInfo
CultureInfo cultures = new CultureInfo("en-US");
// declaring and initializing String array
string[] values = {"123", "+123", "-123"};
// calling get() Method
Console.Write("Converted sbyte value"
+ " from a specified string: ");
for (int j = 0; j < values.Length; j++)
{
get(values[j], cultures);
}
}
catch (FormatException e)
{
Console.WriteLine("\n");
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (OverflowException e)
{
Console.WriteLine("\n");
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
// Defining get() method
public static void get(string s,
CultureInfo cultures)
{
// converting string to specified sbyte
sbyte val = Convert.ToSByte(s, cultures);
// display the converted sbyte value
Console.Write(" {0}, ", val);
}
}
Output:
Converted sbyte value from a specified string: 123, 123, -123,
例 2: 为格式异常
// C# program to demonstrate the
// Convert.ToSByte() Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
try {
// creating object of CultureInfo
CultureInfo cultures = new CultureInfo("en-US");
// declaring and initializing String array
string[] values = {"123", "+123", "-123"};
// calling get() Method
Console.Write("Converted sbyte value"
+ " of specified strings: ");
for (int j = 0; j < values.Length; j++)
{
get(values[j], cultures);
}
Console.WriteLine("\n");
string s = "123 456, 789";
Console.WriteLine("format of s is invalid");
// converting string to specified sbyte
sbyte val = Convert.ToSByte(s, cultures);
// display the converted ToSByte value
Console.Write(" {0}, ", val);
}
catch (FormatException e)
{
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (OverflowException e)
{
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
// Defining get() method
public static void get(string s,
CultureInfo cultures)
{
// converting string to
// specified sbyte value
sbyte val = Convert.ToSByte(s, cultures);
// display the converted
// sbyte value
Console.Write(" {0}, ", val);
}
}
Output:
Converted sbyte value of specified strings: 123, 123, -123,
format of s is invalid
Exception Thrown: System.FormatException
例 3: 适用于飞越异常
// C# program to demonstrate the
// Convert.ToSByte() Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
try {
// creating object of CultureInfo
CultureInfo cultures = new CultureInfo("en-US");
// declaring and initializing String array
string[] values = {"123", "+123", "-123"};
// calling get() Method
Console.Write("Converted sbyte value "
+ "of specified strings: ");
for (int j = 0; j < values.Length; j++)
{
get(values[j], cultures);
}
Console.WriteLine("\n");
string s = "-7922816251426433759354395033500000";
Console.WriteLine("s is less than the MinValue");
// converting string to specified sbyte
sbyte val = Convert.ToSByte(s, cultures);
// display the converted sbyte value
Console.Write(" {0}, ", val);
}
catch (FormatException e)
{
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
catch (OverflowException e)
{
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
// Defining get() method
public static void get(string s,
CultureInfo cultures)
{
// converting string to
// specified sbyte value
sbyte val = Convert.ToSByte(s, cultures);
// display the converted sbyte value
Console.Write(" {0}, ", val);
}
}
Output:
Converted sbyte value of specified strings: 123, 123, -123,
s is less than the MinValue
Exception Thrown: System.OverflowException
参考:
版权属于：月萌API www.moonapi.com，转载请注明出处
