Short switch case c#
Splet14. maj 2024 · 比起if-else,个人觉得switch更加直观,简洁。 在C#8之前,可以使用以下代码转换为对应的字符串: string grade = "A"; //成绩等级 string description; switch (grade) { case "A": description = "很棒! "; break; case "B": description = "做得好"; break; case "C": description = "通过了"; break; default: description = "无效的成绩"; break; } 但是在C# 8中, …
Short switch case c#
Did you know?
SpletLike similar constructs in other object oriented languages, given an arbitrary expression, you can match its result to a case, and execute selected statements. switch(car. Color){caseColor. Red:Console. WriteLine("Color is red!" );break;caseColor. Blue:Console. WriteLine("Color is blue!" );break;default:Console. SpletCú pháp của lệnh switch trong C# như sau: switch(biểu_thức) { case biểu_thức_hằng : các lệnh cần thực thi; break; /* tùy ý */ case biểu_thức_hằng : các lệnh cần thực thi; break; /* tùy ý */ /* số lượng lệnh case là tùy theo bạn */ default : /* tùy ý */ các lệnh cần thực thi; } Các quy tắc sau được áp dụng tới một lệnh switch:
Splet15. feb. 2024 · Para garantir que uma expressão switch manipule todos os valores de entrada possíveis, forneça um braço de expressão switch com um padrão de descarte. … SpletSwitch Statements in C# Loops in C# While Loop in C# Do While Loop in C# For Loop in C# Break Statement in C# Continue Statement in C# Goto Statement in C# Functions in C# User-Defined Functions in C# Call By Value and Call By Reference in C# Recursion in C# User Input and Output in C# Command Line Arguments in C# String in C#
Splet25. jun. 2024 · static bool CheckIfCanWalkIntoBankSwitch (Bank bank, bool isVip) { bool result = false; switch (bank.Status) { case BankBranchStatus.Open : result = true; break; case BankBranchStatus.Closed : result = false; break; case BankBranchStatus.VIPCustomersOnly : result = isVip; break; } return result; } Splet10. apr. 2024 · 情况1:所有的case里面没有一个能成功匹配. 先执行default控制的语句,然后把default后面的所有语句无视case运行一遍(ps 如果有相同语句合并的就只执行一 …
SpletThe switch statement evaluates the expression (or variable) and compare its value with the values (or expression) of each case ( value1, value2, …). When it finds the matching value, …
Splet17. sep. 2024 · Principles of the switch Statement. C# switch is a selection statement for choosing a switch section matching the specified pattern. In other words, this statement … open cash drawer without printing receiptSplet25. jun. 2024 · Getting Setup With C# 8. If you aren’t sure if you are using C# 8, or you know you aren’t and want to know how to access these features. Read this quick guide on … iowa medicaid for childrenSpletC# Switch Case Statement Example. Following is the example of using switch statements in the c# programming language. Console.WriteLine("Press Enter Key to Exit.."); If you observe the above example, we defined a switch with multiple case statements, and it will execute the matched case statements with the expression value. open cashier positionsSplet20. jun. 2024 · With C# prior to version 8, a switch may be written like so: var switchValue = 3; var resultText = string.Empty; switch (switchValue) { case 1: case 2: case 3: resultText … open casket by dana schutzSplet11. jan. 2024 · When you provide a not implemented case, I would like to throw some exception and provide a list of available case values. switch (partName.Trim ().ToLower ()) { case "engine": //something break; case "door": //something break; case "wheel": //something break; default: throw new NotImplementedException ($"Available parts are {????}."); open casket flower spraySpletswitch ( Type.GetTypeCode( type)) { case TypeCode.Int32: break; case TypeCode.String: break; default: if ( type == typeof( MyCoolType)) { } else if ( type == typeof( MyOtherType)) { } } 相关讨论 谢谢,马丁,我正在调查…很快就会回来的。 实际上,我正在尝试自动化前端验证过程,因此我需要一些关于自动化数据类型验证的想法/指导 要做到这一点,一个好的、 … open cash drawer vb.netSplet04. okt. 2010 · Short answer: No. The switch statement takes an expression that is only evaluated once. Based on the result, another piece of code is executed. So what? => … open casket celebrity photos