字符串与字符串 C#

文本表示称为字符串。它是字符的组合，否则称为变量。字符串是从字母表中选择的，并且始终采用字母字符。该字符串被视为数据类型数组。它也是数组的表示。字符串中的变量允许静态或动态分配内存。字符串在C#中被用作类，是Unicode字符或字符数组的组合。我们可以将字符数组称为文本，就像使用字母表一样，并形成有意义的单词。字符串是一个关键字，与类一起使用。

字符串和字符串 C# 的头对头比较（信息图表）

以下是 String 与 String C# 之间的前 16 个比较：

String 和 String C# 之间的主要区别

让我们在以下几点讨论 String 与 String C# 之间的一些关键区别：

• 字符串类需要在文件中导入系统命名空间，而字符串变量不需要声明它。 System 命名空间帮助程序轻松地从 C# 导入到 VB.NET。
• 字符串是类型类，而字符串是 C# 中的词法构造。
• 必须为字符串定义指令，而字符串变量则完全不需要。
• 它被写成字符串和字符串。格式 () 或 System.字符串。
• 字符串是 CLR 中的类型，而字符串是 C# 中的类型。当 C# 和 CLR 一起使用时，System.该字符串会自动使用。
• 字符串是 .NET Framework 中的数据类型，而字符串是 C# 中的数据类型。
• 对于变量声明，使用字符串，对于类声明 System.使用了字符串。
• 字符串在System中是引用类型，而字符串作为变量不能用来引用C#中的任何数据或类型。
• 字符串可以引用任何内容，具体取决于用法。但字符串是一个关键字，不能用于声明任何变量，它始终具有正确的用法含义。
• 当需要静态函数时，最好使用 System.细绳。字符串作为变量可以用于变量的使用和正确的编码风格。
• 关键字 string 仅用于创建变量，在 C# 中使用有限。系统。字符串有一组不同的函数和属性来更改字符串变量。
• 当使用字符串来声明变量时，String 用于访问 C# 中的静态方法，例如 String。 Format() 和 String.比较()等等。
• Clojure 的数字字面值编译时有或没有边界检查，而 Scala 的数字编译并不像这样复杂。
• 字符串始终映射到 System. String，而 String 不需要映射到任何变量或类。
• 当使用字符串时，它只是用于变量声明，但在代码中使用 String 时，它有多种用途。

字符串与C#字符串对照表

下表总结了 String 与 String C# 之间的比较:

String	String in C#
A string is a reserved word. Hence we cannot use string as a variable name.	A string is a class name.
The system is not needed to use a string variable.	A string cannot be used with writing using System. When it is created, it should be used to declare the variable and hence the type is different.
To declare a variable, the string is used.	A string is used when a method is called or declared.
The variable string always points to System. string.	System string can take cues from string or any other data type, and it is not always reserved for string variable alone.
The bugs are less and not common in the string.	The bugs are common, and to fix bugs, we have to go through the entire code as it takes the response from all the data types.
The meaning of string depends on the variable it carries.	The meaning of String depends on the source code or the referenced type in the assemblies of the project.
Developers can easily interpret the string as it reserves only a few data types.	It takes time for developers to interpret the code using String, and it may take hours to solve the issues related to System string.
While declaring string, it will throw an error if the other side variable is not defined.	It depends on the codebase to show the error as in some cases, String does not need the variable to be declared, and in some cases, it asks for it.
A string is not defined with any regularity, and it shows an error if the variable is not defined properly.	The string is defined with some regularity as it takes the types from all the reserved data types and cross verifies the same.
A string has only one purpose, and it is to declare the variable in the program.	The string has various purposes regarding class declaration, libraries, serialization, reflections, helpers, lexical constructs, etc.
The string is used for local declarations.	The string is used for static methods.
The string has better readability and is understood well by all developers as a variable declaration.	The readability is not good, and as it is used for many purposes; developers are often confused with the usage.
The usage of the string is limited, and hence the compilation time is less for the program.	The usage of String is vast, and hence it takes a long time to compile the program.
Once when we declare a variable, we cannot change it, and hence a new variable has to be declared. The string is immutable.	Strings are mutable, and we can use them repetitively for many purposes in the coding regime.
Since strings are used for a single purpose and are immutable, the usage of the string is costly.	Strings can be used more than once, and we can say that the usage of Strings is not a costly affair.
Optimization of a string is not good and takes time.	It provides a better way to optimize Strings.

结论

字符串和字符串变量在大多数方面都很相似，例如性能、用法（除了上面指出的以外）。然而，在大多数情况下，字符串变量是首选，因为它很容易突出显示语法。  当 C# 编译器与 Java 字节代码一起使用时，编译器将映射为字符串或 System.字符串。

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