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Add
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0 |
加法运算,如 a + b,针对数值操作数,不进行溢出检查。An addition operation, such as a + b, without overflow checking, for numeric operands.
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AddAssign
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63 |
加法复合赋值运算,如 (a += b),针对数值操作数,不进行溢出检查。An addition compound assignment operation, such as (a += b), without overflow checking, for numeric operands.
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AddAssignChecked
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74 |
加法复合赋值运算,如 (a += b),针对数值操作数,并进行溢出检查。An addition compound assignment operation, such as (a += b), with overflow checking, for numeric operands.
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AddChecked
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1 |
加法运算,如 (a + b),针对数值操作数,进行溢出检查。An addition operation, such as (a + b), with overflow checking, for numeric operands.
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And
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2 |
按位或逻辑 AND 运算,如 C# 中的 (a & b) 和 Visual Basic 中的 (a And b)。A bitwise or logical AND operation, such as (a & b) in C# and (a And b) in Visual Basic.
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AndAlso
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3 |
条件 AND 运算,它仅在第一个操作数的计算结果为 true 时才计算第二个操作数。A conditional AND operation that evaluates the second operand only if the first operand evaluates to true. 它对应于 C# 中的 (a && b) 和 Visual Basic 中的 (a AndAlso b)。It corresponds to (a && b) in C# and (a AndAlso b) in Visual Basic.
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AndAssign
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64 |
按位或逻辑 AND 复合赋值运算,如 C# 中的 (a &= b)。A bitwise or logical AND compound assignment operation, such as (a &= b) in C#.
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ArrayIndex
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5 |
一维数组中的索引运算,如 C# 中的 array[index] 或 Visual Basic 中的 array(index)。An indexing operation in a one-dimensional array, such as array[index] in C# or array(index) in Visual Basic.
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ArrayLength
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4 |
获取一维数组长长度的运算,如 array.Length。An operation that obtains the length of a one-dimensional array, such as array.Length.
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Assign
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46 |
赋值运算,如 (a = b)。An assignment operation, such as (a = b).
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Block
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47 |
表达式块。A block of expressions.
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Call
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6 |
方法调用,如在 obj.sampleMethod() 表达式中。A method call, such as in the obj.sampleMethod() expression.
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Coalesce
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7 |
表示 null 合并运算的节点,如 C# 中的 (a ?? b) 或 Visual Basic 中的 If(a, b)。A node that represents a null coalescing operation, such as (a ?? b) in C# or If(a, b) in Visual Basic.
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Conditional
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8 |
条件运算,如 C# 中的 a > b ? a : b 或 Visual Basic 中的 If(a > b, a, b)。A conditional operation, such as a > b ? a : b in C# or If(a > b, a, b) in Visual Basic.
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Constant
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9 |
一个常量值。A constant value.
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Convert
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10 |
强制转换或转换操作,如 C# 中的 (SampleType)obj 或 Visual Basic 中的 CType(obj, SampleType)。A cast or conversion operation, such as (SampleType)obj in C#or CType(obj, SampleType) in Visual Basic. 对于数值转换,如果转换后的值对于目标类型来说太大,这不会引发异常。For a numeric conversion, if the converted value is too large for the destination type, no exception is thrown.
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ConvertChecked
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11 |
强制转换或转换操作,如 C# 中的 (SampleType)obj 或 Visual Basic 中的 CType(obj, SampleType)。A cast or conversion operation, such as (SampleType)obj in C#or CType(obj, SampleType) in Visual Basic. 对于数值转换,如果转换后的值与目标类型大小不符,则引发异常。For a numeric conversion, if the converted value does not fit the destination type, an exception is thrown.
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DebugInfo
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48 |
调试信息。Debugging information.
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Decrement
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49 |
一元递减运算,如 C# 和 Visual Basic 中的 (a - 1)。A unary decrement operation, such as (a - 1) in C# and Visual Basic. 不应就地修改 a 对象。The object a should not be modified in place.
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Default
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51 |
默认值。A default value.
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Divide
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12 |
除法运算,如 (a / b),针对数值操作数。A division operation, such as (a / b), for numeric operands.
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DivideAssign
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65 |
除法复合赋值运算,如 (a /= b),针对数值操作数。An division compound assignment operation, such as (a /= b), for numeric operands.
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Dynamic
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50 |
动态操作。A dynamic operation.
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Equal
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13 |
表示相等比较的节点,如 C# 中的 (a == b) 或 Visual Basic 中的 (a = b)。A node that represents an equality comparison, such as (a == b) in C# or (a = b) in Visual Basic.
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ExclusiveOr
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14 |
按位或逻辑 XOR 运算,如 C# 中的 (a ^ b) 和 Visual Basic 中的 (a Xor b)。A bitwise or logical XOR operation, such as (a ^ b) in C# or (a Xor b) in Visual Basic.
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ExclusiveOrAssign
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66 |
按位或逻辑 XOR 复合赋值运算,如 c # 中 的 (^ = b) 。A bitwise or logical XOR compound assignment operation, such as (a ^= b) in C#.
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Extension
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52 |
扩展表达式。An extension expression.
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Goto
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53 |
“转到”表达式,如 C# 中的 goto Label 或 Visual Basic 中的 GoTo Label。A "go to" expression, such as goto Label in C# or GoTo Label in Visual Basic.
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GreaterThan
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15 |
“大于”比较,如 (a > b)。A "greater than" comparison, such as (a > b).
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GreaterThanOrEqual
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16 |
“大于或等于”比较,如 (a >= b)。A "greater than or equal to" comparison, such as (a >= b).
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Increment
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54 |
一元递增运算,如 C# 和 Visual Basic 中的 (a + 1)。A unary increment operation, such as (a + 1) in C# and Visual Basic. 不应就地修改 a 对象。The object a should not be modified in place.
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Index
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55 |
索引运算或访问使用参数的属性的运算。An index operation or an operation that accesses a property that takes arguments.
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Invoke
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17 |
调用委托或 lambda 表达式的运算,如 sampleDelegate.Invoke()。An operation that invokes a delegate or lambda expression, such as sampleDelegate.Invoke().
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IsFalse
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84 |
false 条件值。A false condition value.
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IsTrue
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83 |
true 条件值。A true condition value.
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Label
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56 |
标签。A label.
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Lambda
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18 |
lambda 表达式,如 C# 中的 a => a + a 或 Visual Basic 中的 Function(a) a + a。A lambda expression, such as a => a + a in C# or Function(a) a + a in Visual Basic.
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LeftShift
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19 |
按位左移运算,如 (a << b)。A bitwise left-shift operation, such as (a << b).
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LeftShiftAssign
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67 |
按位左移复合赋值运算,如 (a <<= b)。A bitwise left-shift compound assignment, such as (a <<= b).
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LessThan
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20 |
“小于”比较,如 (a < b)。A "less than" comparison, such as (a < b).
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LessThanOrEqual
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21 |
“小于或等于”比较,如 (a <= b)。A "less than or equal to" comparison, such as (a <= b).
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ListInit
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22 |
创建新的 IEnumerable 对象并从元素列表中初始化该对象的运算,如 C# 中的 new List<SampleType>(){ a, b, c } 或 Visual Basic 中的 Dim sampleList = { a, b, c }。An operation that creates a new IEnumerable object and initializes it from a list of elements, such as new List<SampleType>(){ a, b, c } in C# or Dim sampleList = { a, b, c } in Visual Basic.
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Loop
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58 |
一个循环,例如 for 或 while。A loop, such as for or while.
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MemberAccess
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23 |
从字段或属性进行读取的运算,如 obj.SampleProperty。An operation that reads from a field or property, such as obj.SampleProperty.
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MemberInit
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24 |
创建新的对象并初始化其一个或多个成员的运算,如 C# 中的 new Point { X = 1, Y = 2 } 或 Visual Basic 中的 New Point With {.X = 1, .Y = 2}。An operation that creates a new object and initializes one or more of its members, such as new Point { X = 1, Y = 2 } in C# or New Point With {.X = 1, .Y = 2} in Visual Basic.
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Modulo
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25 |
算术余数运算,如 C# 中的 (a % b) 或 Visual Basic 中的 (a Mod b)。An arithmetic remainder operation, such as (a % b) in C# or (a Mod b) in Visual Basic.
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ModuloAssign
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68 |
算术余数复合赋值运算,如 C# 中的 (a %= b)。An arithmetic remainder compound assignment operation, such as (a %= b) in C#.
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Multiply
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26 |
乘法运算,如 (a * b),针对数值操作数,不进行溢出检查。A multiplication operation, such as (a * b), without overflow checking, for numeric operands.
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MultiplyAssign
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69 |
乘法复合赋值运算,如 (a *= b),针对数值操作数,不进行溢出检查。A multiplication compound assignment operation, such as (a *= b), without overflow checking, for numeric operands.
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MultiplyAssignChecked
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75 |
乘法复合赋值运算,如 (a *= b),针对数值操作数,进行溢出检查。A multiplication compound assignment operation, such as (a *= b), that has overflow checking, for numeric operands.
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MultiplyChecked
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27 |
乘法运算,如 (a * b),针对数值操作数,进行溢出检查。An multiplication operation, such as (a * b), that has overflow checking, for numeric operands.
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Negate
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28 |
算术求反运算,如 (-a)。An arithmetic negation operation, such as (-a). 不应就地修改 a 对象。The object a should not be modified in place.
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NegateChecked
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30 |
算术求反运算,如 (-a),进行溢出检查。An arithmetic negation operation, such as (-a), that has overflow checking. 不应就地修改 a 对象。The object a should not be modified in place.
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New
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31 |
调用构造函数创建新对象的运算,如 new SampleType()。An operation that calls a constructor to create a new object, such as new SampleType().
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NewArrayBounds
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33 |
创建新数组(其中每个维度的界限均已指定)的运算,如 C# 中的 new SampleType[dim1, dim2] 或 Visual Basic 中的 New SampleType(dim1, dim2)。An operation that creates a new array, in which the bounds for each dimension are specified, such as new SampleType[dim1, dim2] in C# or New SampleType(dim1, dim2) in Visual Basic.
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NewArrayInit
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32 |
创建新的一维数组并从元素列表中初始化该数组的运算,如 C# 中的 new SampleType[]{a, b, c} 或 Visual Basic 中的 New SampleType(){a, b, c}。An operation that creates a new one-dimensional array and initializes it from a list of elements, such as new SampleType[]{a, b, c} in C# or New SampleType(){a, b, c} in Visual Basic.
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Not
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34 |
按位求补运算或逻辑求反运算。A bitwise complement or logical negation operation. 在 C# 中,它与整型的 (~a) 和布尔值的 (!a) 等效。In C#, it is equivalent to (~a) for integral types and to (!a) for Boolean values. 在 Visual Basic 中,它与 (Not a) 等效。In Visual Basic, it is equivalent to (Not a). 不应就地修改 a 对象。The object a should not be modified in place.
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NotEqual
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35 |
不相等比较,如 C# 中的 (a != b) 或 Visual Basic 中的 (a <> b)。An inequality comparison, such as (a != b) in C# or (a <> b) in Visual Basic.
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OnesComplement
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82 |
二进制反码运算,如 C# 中的 (~a)。A ones complement operation, such as (~a) in C#.
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Or
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36 |
按位或逻辑 OR 运算,如 C# 中的 (a | b) 和 Visual Basic 中的 (a Or b)。A bitwise or logical OR operation, such as (a | b) in C# or (a Or b) in Visual Basic.
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OrAssign
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70 |
按位或逻辑 OR 复合赋值运算,如 C# 中的 (a |= b)。A bitwise or logical OR compound assignment, such as (a |= b) in C#.
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OrElse
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37 |
短路条件 OR 运算,如 C# 中的 (a || b) 或 Visual Basic 中的 (a OrElse b)。A short-circuiting conditional OR operation, such as (a || b) in C# or (a OrElse b) in Visual Basic.
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Parameter
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38 |
对在表达式上下文中定义的参数或变量的引用。A reference to a parameter or variable that is defined in the context of the expression. 有关详细信息,请参阅 ParameterExpression。For more information, see ParameterExpression.
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PostDecrementAssign
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80 |
一元后缀递减,如 (a--)。A unary postfix decrement, such as (a--). 应就地修改 a 对象。The object a should be modified in place.
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PostIncrementAssign
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79 |
一元后缀递增,如 (a++)。A unary postfix increment, such as (a++). 应就地修改 a 对象。The object a should be modified in place.
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Power
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39 |
对某个数字进行幂运算的数学运算,如 Visual Basic 中的 (a ^ b)。A mathematical operation that raises a number to a power, such as (a ^ b) in Visual Basic.
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PowerAssign
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71 |
对某个数字进行幂运算的复合赋值运算,如 Visual Basic 中的(a ^= b)。A compound assignment operation that raises a number to a power, such as (a ^= b) in Visual Basic.
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PreDecrementAssign
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78 |
一元前缀递减,如 (--a)。A unary prefix decrement, such as (--a). 应就地修改 a 对象。The object a should be modified in place.
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PreIncrementAssign
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77 |
一元前缀递增,如 (++a)。A unary prefix increment, such as (++a). 应就地修改 a 对象。The object a should be modified in place.
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Quote
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40 |
具有类型为 Expression 的常量值的表达式。An expression that has a constant value of type Expression. Quote 节点可包含对参数的引用,这些参数在该节点表示的表达式的上下文中定义。A Quote node can contain references to parameters that are defined in the context of the expression it represents.
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RightShift
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41 |
按位右移运算,如 (a >> b)。A bitwise right-shift operation, such as (a >> b).
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RightShiftAssign
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72 |
按位右移复合赋值运算,如 (a >>= b)。A bitwise right-shift compound assignment operation, such as (a >>= b).
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RuntimeVariables
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57 |
运行时变量的列表。A list of run-time variables. 有关详细信息,请参阅 RuntimeVariablesExpression。For more information, see RuntimeVariablesExpression.
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Subtract
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42 |
减法运算,如 (a - b),针对数值操作数,不进行溢出检查。A subtraction operation, such as (a - b), without overflow checking, for numeric operands.
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SubtractAssign
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73 |
减法复合赋值运算,如 (a -= b),针对数值操作数,不进行溢出检查。A subtraction compound assignment operation, such as (a -= b), without overflow checking, for numeric operands.
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SubtractAssignChecked
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76 |
减法复合赋值运算,如 (a -= b),针对数值操作数,进行溢出检查。A subtraction compound assignment operation, such as (a -= b), that has overflow checking, for numeric operands.
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SubtractChecked
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43 |
算术减法运算,如 (a - b),针对数值操作数,进行溢出检查。An arithmetic subtraction operation, such as (a - b), that has overflow checking, for numeric operands.
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Switch
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59 |
多分支选择运算,如 C# 中的 switch 或 Visual Basic 中的 Select Case。A switch operation, such as switch in C# or Select Case in Visual Basic.
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Throw
|
60 |
引发异常的运算,如引发新异常()。An operation that throws an exception, such as throw new Exception().
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Try
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61 |
try-catch 表达式。A try-catch expression.
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TypeAs
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44 |
显式引用或装箱转换,其中如果转换失败则提供 null,如 C# 中的 (obj as SampleType) 或 Visual Basic 中的 TryCast(obj, SampleType)。An explicit reference or boxing conversion in which null is supplied if the conversion fails, such as (obj as SampleType) in C# or TryCast(obj, SampleType) in Visual Basic.
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TypeEqual
|
81 |
确切类型测试。An exact type test.
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TypeIs
|
45 |
类型测试,如 C# 中的 obj is SampleType 或 Visual Basic 中的 TypeOf obj is SampleType。A type test, such as obj is SampleType in C# or TypeOf obj is SampleType in Visual Basic.
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UnaryPlus
|
29 |
一元加法运算,如 (+a)。A unary plus operation, such as (+a). 预定义的一元加法运算的结果是操作数的值,但用户定义的实现可以产生特殊结果。The result of a predefined unary plus operation is the value of the operand, but user-defined implementations might have unusual results.
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Unbox
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62 |
取消装箱值类型运算,如 MSIL 中的 unbox 和 unbox.any 指令。An unbox value type operation, such as unbox and unbox.any instructions in MSIL.
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