本文整理汇总了C#中System.Boolean结构体的典型用法代码示例。如果您正苦于以下问题：C# Boolean结构体的具体用法？C# Boolean怎么用？C# Boolean使用的例子？那么恭喜您, 这里精选的结构体代码示例或许可以为您提供帮助。
Boolean结构体属于System命名空间，在下文中一共展示了Boolean结构体的11个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Main
//引入命名空间
using System;
public class Example
{
public static void Main()
{
bool raining = false;
bool busLate = true;
Console.WriteLine("It is raining: {0}", raining);
Console.WriteLine("The bus is late: {0}", busLate);
}
}输出：
It is raining: False The bus is late: True
示例2: Main
//引入命名空间
using System;
public class Example
{
public static void Main()
{
bool raining = false;
bool busLate = true;
Console.WriteLine("It is raining: {0}",
raining ? "Yes" : "No");
Console.WriteLine("The bus is late: {0}",
busLate ? "Yes" : "No" );
}
}输出：
It is raining: No The bus is late: Yes
示例3: Main
//引入命名空间
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
String[] cultureNames = { "", "en-US", "fr-FR", "ru-RU" };
foreach (var cultureName in cultureNames) {
bool value = true;
CultureInfo culture = CultureInfo.CreateSpecificCulture(cultureName);
BooleanFormatter formatter = new BooleanFormatter(culture);
String result = String.Format(formatter, "Value for '{0}': {1}", culture.Name, value);
Console.WriteLine(result);
}
}
}
public class BooleanFormatter : ICustomFormatter, IFormatProvider
{
private CultureInfo culture;
public BooleanFormatter() : this(CultureInfo.CurrentCulture)
{ }
public BooleanFormatter(CultureInfo culture)
{
this.culture = culture;
}
public Object GetFormat(Type formatType)
{
if (formatType == typeof(ICustomFormatter))
return this;
else
return null;
}
public String Format(String fmt, Object arg, IFormatProvider formatProvider)
{
// Exit if another format provider is used.
if (! formatProvider.Equals(this)) return null;
// Exit if the type to be formatted is not a Boolean
if (! (arg is Boolean)) return null;
bool value = (bool) arg;
switch (culture.Name) {
case "en-US":
return value.ToString();
case "fr-FR":
if (value)
return "vrai";
else
return "faux";
case "ru-RU":
if (value)
return "верно";
else
return "неверно";
default:
return value.ToString();
}
}
}输出：
Value for '': True Value for 'en-US': True Value for 'fr-FR': vrai Value for 'ru-RU': верно
示例4: Main
//引入命名空间
using System;
public class Example
{
public static void Main()
{
Byte byteValue = 12;
Console.WriteLine(Convert.ToBoolean(byteValue));
Byte byteValue2 = 0;
Console.WriteLine(Convert.ToBoolean(byteValue2));
int intValue = -16345;
Console.WriteLine(Convert.ToBoolean(intValue));
long longValue = 945;
Console.WriteLine(Convert.ToBoolean(longValue));
SByte sbyteValue = -12;
Console.WriteLine(Convert.ToBoolean(sbyteValue));
double dblValue = 0;
Console.WriteLine(Convert.ToBoolean(dblValue));
float sngValue = .0001f;
Console.WriteLine(Convert.ToBoolean(sngValue));
}
}输出：
True False True True True False True
示例5: Main
//引入命名空间
using System;
public class Example
{
public static void Main()
{
bool flag = true;
byte byteValue;
byteValue = Convert.ToByte(flag);
Console.WriteLine("{0} -> {1}", flag, byteValue);
sbyte sbyteValue;
sbyteValue = Convert.ToSByte(flag);
Console.WriteLine("{0} -> {1}", flag, sbyteValue);
double dblValue;
dblValue = Convert.ToDouble(flag);
Console.WriteLine("{0} -> {1}", flag, dblValue);
int intValue;
intValue = Convert.ToInt32(flag);
Console.WriteLine("{0} -> {1}", flag, intValue);
}
}输出：
True -> 1 True -> 1 True -> 1 True -> 1
示例6: Main
//引入命名空间
using System;
public class Example
{
public static void Main()
{
string[] values = { null, String.Empty, "True", "False",
"true", "false", " true ",
"TrUe", "fAlSe", "fa lse", "0",
"1", "-1", "string" };
// Parse strings using the Boolean.Parse method.
foreach (var value in values) {
try {
bool flag = Boolean.Parse(value);
Console.WriteLine("'{0}' --> {1}", value, flag);
}
catch (ArgumentException) {
Console.WriteLine("Cannot parse a null string.");
}
catch (FormatException) {
Console.WriteLine("Cannot parse '{0}'.", value);
}
}
Console.WriteLine();
// Parse strings using the Boolean.TryParse method.
foreach (var value in values) {
bool flag = false;
if (Boolean.TryParse(value, out flag))
Console.WriteLine("'{0}' --> {1}", value, flag);
else
Console.WriteLine("Unable to parse '{0}'", value);
}
}
}输出：
Cannot parse a null string. Cannot parse ''. 'True' --> True 'False' --> False 'true' --> True 'false' --> False ' true ' --> True 'TrUe' --> True 'fAlSe' --> False Cannot parse 'fa lse'. Cannot parse '0'. Cannot parse '1'. Cannot parse '-1'. Cannot parse 'string'. Unable to parse '' Unable to parse '' 'True' --> True 'False' --> False 'true' --> True 'false' --> False ' true ' --> True 'TrUe' --> True 'fAlSe' --> False Cannot parse 'fa lse'. Unable to parse '0' Unable to parse '1' Unable to parse '-1' Unable to parse 'string'
示例7: Main
//引入命名空间
using System;
public class Example
{
public static void Main()
{
String[] values = { "09", "12.6", "0", "-13 " };
foreach (var value in values) {
bool success, result;
int number;
success = Int32.TryParse(value, out number);
if (success) {
// The method throws no exceptions.
result = Convert.ToBoolean(number);
Console.WriteLine("Converted '{0}' to {1}", value, result);
}
else {
Console.WriteLine("Unable to convert '{0}'", value);
}
}
}
}输出：
Converted '09' to True Unable to convert '12.6' Converted '0' to False Converted '-13 ' to True
示例8: Main
//引入命名空间
using System;
public class Example
{
public static void Main()
{
bool[] hasServiceCharges = { true, false };
Decimal subtotal = 120.62m;
Decimal shippingCharge = 2.50m;
Decimal serviceCharge = 5.00m;
foreach (var hasServiceCharge in hasServiceCharges) {
Decimal total = subtotal + shippingCharge +
(hasServiceCharge ? serviceCharge : 0);
Console.WriteLine("hasServiceCharge = {1}: The total is {0:C2}.",
total, hasServiceCharge);
}
}
}输出：
hasServiceCharge = True: The total is $128.12. hasServiceCharge = False: The total is $123.12.
示例9: Main
//引入命名空间
using System;
public struct BoolStruct
{
public bool flag1;
public bool flag2;
public bool flag3;
public bool flag4;
public bool flag5;
}
public class Example
{
public static void Main()
{
unsafe {
BoolStruct b = new BoolStruct();
bool* addr = (bool*) &b;
Console.WriteLine("Size of BoolStruct: {0}", sizeof(BoolStruct));
Console.WriteLine("Field offsets:");
Console.WriteLine(" flag1: {0}", (bool*) &b.flag1 - addr);
Console.WriteLine(" flag1: {0}", (bool*) &b.flag2 - addr);
Console.WriteLine(" flag1: {0}", (bool*) &b.flag3 - addr);
Console.WriteLine(" flag1: {0}", (bool*) &b.flag4 - addr);
Console.WriteLine(" flag1: {0}", (bool*) &b.flag5 - addr);
}
}
}输出：
Size of BoolStruct: 5 Field offsets: flag1: 0 flag1: 1 flag1: 2 flag1: 3 flag1: 4
示例10: Main
//引入命名空间
using System;
public class Example
{
public static void Main()
{
bool[] flags = { true, false };
foreach (var flag in flags) {
// Get binary representation of flag.
Byte value = BitConverter.GetBytes(flag)[0];
Console.WriteLine("Original value: {0}", flag);
Console.WriteLine("Binary value: {0} ({1})", value,
GetBinaryString(value));
// Restore the flag from its binary representation.
bool newFlag = BitConverter.ToBoolean( new Byte[] { value }, 0);
Console.WriteLine("Restored value: {0}\n", flag);
}
}
private static string GetBinaryString(Byte value)
{
String retVal = Convert.ToString(value, 2);
return new String('0', 8 - retVal.Length) + retVal;
}
}输出：
Original value: True Binary value: 1 (00000001) Restored value: True Original value: False Binary value: 0 (00000000) Restored value: False
示例11: Main
//引入命名空间
using System;
using System.IO;
using System.Threading;
public class Example
{
public static void Main()
{
// Initialize flag variables.
bool isRedirected = false;
bool isBoth = false;
String fileName = "";
StreamWriter sw = null;
// Get any command line arguments.
String[] args = Environment.GetCommandLineArgs();
// Handle any arguments.
if (args.Length > 1) {
for (int ctr = 1; ctr < args.Length; ctr++) {
String arg = args[ctr];
if (arg.StartsWith("/") || arg.StartsWith("-")) {
switch (arg.Substring(1).ToLower())
{
case "f":
isRedirected = true;
if (args.Length < ctr + 2) {
ShowSyntax("The /f switch must be followed by a filename.");
return;
}
fileName = args[ctr + 1];
ctr++;
break;
case "b":
isBoth = true;
break;
default:
ShowSyntax(String.Format("The {0} switch is not supported",
args[ctr]));
return;
}
}
}
}
// If isBoth is True, isRedirected must be True.
if (isBoth && ! isRedirected) {
ShowSyntax("The /f switch must be used if /b is used.");
return;
}
// Handle output.
if (isRedirected) {
sw = new StreamWriter(fileName);
if (!isBoth)
Console.SetOut(sw);
}
String msg = String.Format("Application began at {0}", DateTime.Now);
Console.WriteLine(msg);
if (isBoth) sw.WriteLine(msg);
Thread.Sleep(5000);
msg = String.Format("Application ended normally at {0}", DateTime.Now);
Console.WriteLine(msg);
if (isBoth) sw.WriteLine(msg);
if (isRedirected) sw.Close();
}
private static void ShowSyntax(String errMsg)
{
Console.WriteLine(errMsg);
Console.WriteLine("\nSyntax: Example [[/f <filename> [/b]]\n");
}
}