C#

提供 C# 编码参考，重点说明空引用与 nullable、async/await 死锁、LINQ 延迟执行与多次枚举、值/引用类型与装箱、集合迭代与相等性、IDisposable 等常见陷阱，并给出相关 .NET 实践规则。

热度 90.72

最近更新 2026-05-11 15:57:18

分类：开发依赖：纯提示词应用场景：代码生成 / 调试排错 / 概念解释

安装技能

复制下面的话术发给你的 Agent，它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill： npx secure-skills-cli add csharp

Metadata

name: C#
slug: csharp
version: 1.0.1
description: Write robust C# avoiding null traps, async deadlocks, and LINQ pitfalls.
metadata: {"clawdbot":{"emoji":"💜","requires":{"bins":["dotnet"]},"os":["linux","darwin","win32"]}}

Topic	File
Null reference, nullable types	`nulls.md`
Async/await, deadlocks	`async.md`
Deferred execution, closures	`linq.md`
Value vs reference, boxing	`types.md`
Iteration, equality	`collections.md`
IDisposable, using, finalizers	`dispose.md`

?. and ?? prevent NRE but ! overrides warnings — still crashes if null
.Result or .Wait() on UI thread — deadlock, use await or ConfigureAwait(false)
LINQ is lazy — query.Where(...) doesn't execute until iteration
Multiple enumeration of IEnumerable — may re-query database, call .ToList() first
Closure captures variable, not value — loop variable in lambda captures last value
Struct in async method — copied, modifications lost after await
String comparison culture — StringComparison.Ordinal for code, CurrentCulture for UI
GetHashCode() must be stable — mutable fields break dictionary lookup
Modifying collection while iterating — throws, use .ToList() to iterate copy
decimal for money — float/double have precision loss
readonly struct prevents defensive copies — use for performance
sealed prevents inheritance — enables devirtualization optimization