本文整理匯總了C#中System.Linq.Expressions.Expression.AddAssign方法的典型用法代碼示例。如果您正苦於以下問題：C# Expression.AddAssign方法的具體用法？C# Expression.AddAssign怎麽用？C# Expression.AddAssign使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Linq.Expressions.Expression的用法示例。
在下文中一共展示了Expression.AddAssign方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1:
// Add the following directive to your file:
// using System.Linq.Expressions;
// The Parameter expression is used to create a variable.
ParameterExpression variableExpr = Expression.Variable(typeof(int), "sampleVar");
// The block expression enables you to execute several expressions sequentually.
// In this bloc, the variable is first initialized with 1.
// Then the AddAssign method adds 2 to the variable and assigns the result to the variable.
BlockExpression addAssignExpr = Expression.Block(
new ParameterExpression[] { variableExpr },
Expression.Assign(variableExpr, Expression.Constant(1)),
Expression.AddAssign(
variableExpr,
Expression.Constant(2)
)
);
// Print out the expression from the block expression.
Console.WriteLine("The expressions from the block expression:");
foreach (var expr in addAssignExpr.Expressions)
Console.WriteLine(expr.ToString());
Console.WriteLine("The result of executing the expression tree:");
// The following statement first creates an expression tree,
// then compiles it, and then executes it.
Console.WriteLine(Expression.Lambda<Func<int>>(addAssignExpr).Compile()());輸出：
The expressions from the block expression: (sampleVar = 1) (sampleVar += 2) The result of executing the expression tree: 3