boolean adj. 1. 布尔逻辑体系的(分别以 1 和 0 代指是和非)connected with a system, used especially in computing and electronics , that uses only the numbers 1 (to show sth is true) and 0 (to show sth is false) 例句 释义: 全部,布尔逻辑体系的,〔数〕布尔,布尔型,布尔值,布林...
Returns aBooleaninstance representing the specifiedbooleanvalue. If the specifiedbooleanvalue istrue, this method returnsBoolean.TRUE; if it isfalse, this method returnsBoolean.FALSE. If a newBooleaninstance is not required, this method should generally be used in preference to the constructorBoolean(...
public override bool IsDefined (Type attributeType, bool inherit); 参数 attributeType Type 将应用自定义属性的 Type 对象。 inherit Boolean 指定是否搜索此成员的继承链以查找属性。 返回 Boolean 如果在此成员上定义了一个或多个 attributeType 的实例,则为 true;否则为 false。 例外 NotSupportedException...
true 或false,它将反映通过对 ToBoolean(IFormatProvider) 的基础类型调用 value 方法而返回的值。 如果 value 为null,则此方法返回 false。 例外 FormatException value 是一个不等于 TrueString 或FalseString的字符串。 InvalidCastException value 不实现 IConvertible 接口。 或 不支持 value 到Boolean 的转换...
true if value is not zero; otherwise, false. Examples The following example converts an array of Single values to Boolean values. C# Copy Run float[] numbers = { Single.MinValue, -193.0012f, 20e-15f, 0f, 10551e-10f, 100.3398f, Single.MaxValue }; bool result; foreach (float number...
Boolean:有两个值,为true与false Number:值遵循IEEE 754标准的64位浮点数的集合,没有整型数据结构。此外还包含三个特殊的值:NaN、Infinity、Infinity String:值是有穷个Unicode字符的集合。必须用'或"括起来。 1. 2. 3. 4. 5. 还有一种复杂数据类型:Object ...
defined.Type aType =typeof(AssemblyTitleAttribute); Console.WriteLine(asm.IsDefined(aType,false));// Try an attribute not defined.aType =typeof(AssemblyVersionAttribute); Console.WriteLine(asm.IsDefined(aType,false)); } }/// This code example produces the following out...
TRUE / FALSE For this, JavaScript has aBooleandata type. It can only take the valuestrueorfalse. The Boolean() Function You can use theBoolean()function to find out if an expression (or a variable) is true: Example Boolean(10>9) ...
MethodDefined By Boolean(expression:Object = false) Creates a Boolean object with the specified value. Boolean toString():String Returns the string representation ("true" or "false") of the Boolean object. Boolean valueOf():Boolean Returns true if the value of the specified Boolean object is ...
[1,0,False,True,True]>>>a=bitarray(lst)# initialize from iterable>>>abitarray('10011')>>>a[2]# indexing a single item will always return an integer0>>>a[2:4]# whereas indexing a slice will always return a bitarraybitarray('01')>>>a[2:3]# even when the slice length is ...