添加项目文件。

.editorconfig

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+# 如果要从更高级别的目录继承 .editorconfig 设置，请删除以下行
+root = true
+
+# c# 文件
+[*.cs]
+
+#### Core EditorConfig 选项 ####
+
+# 缩进和间距
+indent_size = 4
+indent_style = space
+tab_width = 4
+
+# 新行首选项
+end_of_line = crlf
+insert_final_newline = false
+
+#### .NET 编码约定 ####
+
+# 组织 Using
+dotnet_separate_import_directive_groups = true
+dotnet_sort_system_directives_first = true
+file_header_template = unset
+
+# this. 和 Me. 首选项
+dotnet_style_qualification_for_event = false:suggestion
+dotnet_style_qualification_for_field = false
+dotnet_style_qualification_for_method = false:suggestion
+dotnet_style_qualification_for_property = false:suggestion
+
+# 语言关键字与 bcl 类型首选项
+dotnet_style_predefined_type_for_locals_parameters_members = true:suggestion
+dotnet_style_predefined_type_for_member_access = false:suggestion
+
+# 括号首选项
+dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:suggestion
+dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:suggestion
+dotnet_style_parentheses_in_other_operators = never_if_unnecessary:suggestion
+dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:suggestion
+
+# 修饰符首选项
+dotnet_style_require_accessibility_modifiers = for_non_interface_members
+
+# 表达式级首选项
+dotnet_style_coalesce_expression = true
+dotnet_style_collection_initializer = true
+dotnet_style_explicit_tuple_names = true
+dotnet_style_namespace_match_folder = true
+dotnet_style_null_propagation = true
+dotnet_style_object_initializer = true
+dotnet_style_operator_placement_when_wrapping = beginning_of_line
+dotnet_style_prefer_auto_properties = true:suggestion
+dotnet_style_prefer_compound_assignment = true
+dotnet_style_prefer_conditional_expression_over_assignment = true
+dotnet_style_prefer_conditional_expression_over_return = true
+dotnet_style_prefer_foreach_explicit_cast_in_source = when_strongly_typed
+dotnet_style_prefer_inferred_anonymous_type_member_names = true
+dotnet_style_prefer_inferred_tuple_names = true
+dotnet_style_prefer_is_null_check_over_reference_equality_method = true
+dotnet_style_prefer_simplified_boolean_expressions = true
+dotnet_style_prefer_simplified_interpolation = true
+
+# 字段首选项
+dotnet_style_readonly_field = true
+
+# 参数首选项
+dotnet_code_quality_unused_parameters = all
+
+# 禁止显示首选项
+dotnet_remove_unnecessary_suppression_exclusions = 0
+
+# 新行首选项
+dotnet_style_allow_multiple_blank_lines_experimental = false:suggestion
+dotnet_style_allow_statement_immediately_after_block_experimental = false:suggestion
+
+#### c# 编码约定 ####
+
+# var 首选项
+csharp_style_var_elsewhere = true:suggestion
+csharp_style_var_for_built_in_types = false:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+
+# Expression-bodied 成员
+csharp_style_expression_bodied_accessors = when_on_single_line:suggestion
+csharp_style_expression_bodied_constructors = false:suggestion
+csharp_style_expression_bodied_indexers = when_on_single_line:suggestion
+csharp_style_expression_bodied_lambdas = when_on_single_line:suggestion
+csharp_style_expression_bodied_local_functions = false:suggestion
+csharp_style_expression_bodied_methods = false:suggestion
+csharp_style_expression_bodied_operators = false:suggestion
+csharp_style_expression_bodied_properties = when_on_single_line:suggestion
+
+# 模式匹配首选项
+csharp_style_pattern_matching_over_as_with_null_check = true
+csharp_style_pattern_matching_over_is_with_cast_check = true
+csharp_style_prefer_extended_property_pattern = true
+csharp_style_prefer_not_pattern = true
+csharp_style_prefer_pattern_matching = true:suggestion
+csharp_style_prefer_switch_expression = true
+
+# Null 检查首选项
+csharp_style_conditional_delegate_call = true
+
+# 修饰符首选项
+csharp_prefer_static_local_function = true
+csharp_preferred_modifier_order = public,private,protected,internal,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,volatile,async
+csharp_style_prefer_readonly_struct = true
+
+# 代码块首选项
+csharp_prefer_braces = true:suggestion
+csharp_prefer_simple_using_statement = true
+csharp_style_namespace_declarations = file_scoped:suggestion
+csharp_style_prefer_method_group_conversion = true
+csharp_style_prefer_top_level_statements = true
+
+# 表达式级首选项
+csharp_prefer_simple_default_expression = true
+csharp_style_deconstructed_variable_declaration = true
+csharp_style_implicit_object_creation_when_type_is_apparent = true
+csharp_style_inlined_variable_declaration = true
+csharp_style_prefer_index_operator = true
+csharp_style_prefer_local_over_anonymous_function = true
+csharp_style_prefer_null_check_over_type_check = true
+csharp_style_prefer_range_operator = true
+csharp_style_prefer_tuple_swap = true
+csharp_style_prefer_utf8_string_literals = true
+csharp_style_throw_expression = true
+csharp_style_unused_value_assignment_preference = discard_variable:silent
+csharp_style_unused_value_expression_statement_preference = discard_variable
+
+# "using" 指令首选项
+csharp_using_directive_placement = outside_namespace:suggestion
+
+# 新行首选项
+csharp_style_allow_blank_line_after_colon_in_constructor_initializer_experimental = false:suggestion
+csharp_style_allow_blank_line_after_token_in_arrow_expression_clause_experimental = false:suggestion
+csharp_style_allow_blank_line_after_token_in_conditional_expression_experimental = false:suggestion
+csharp_style_allow_blank_lines_between_consecutive_braces_experimental = false:suggestion
+csharp_style_allow_embedded_statements_on_same_line_experimental = false:suggestion
+
+#### C# 格式规则 ####
+
+# 新行首选项
+csharp_new_line_before_catch = true
+csharp_new_line_before_else = true
+csharp_new_line_before_finally = true
+csharp_new_line_before_members_in_anonymous_types = true
+csharp_new_line_before_members_in_object_initializers = true
+csharp_new_line_before_open_brace = types,methods,properties,control_blocks,accessors
+csharp_new_line_between_query_expression_clauses = true
+
+# 缩进首选项
+csharp_indent_block_contents = true
+csharp_indent_braces = false
+csharp_indent_case_contents = true
+csharp_indent_case_contents_when_block = true
+csharp_indent_labels = one_less_than_current
+csharp_indent_switch_labels = true
+
+# 空格键首选项
+csharp_space_after_cast = false
+csharp_space_after_colon_in_inheritance_clause = true
+csharp_space_after_comma = true
+csharp_space_after_dot = false
+csharp_space_after_keywords_in_control_flow_statements = true
+csharp_space_after_semicolon_in_for_statement = true
+csharp_space_around_binary_operators = before_and_after
+csharp_space_around_declaration_statements = false
+csharp_space_before_colon_in_inheritance_clause = true
+csharp_space_before_comma = false
+csharp_space_before_dot = false
+csharp_space_before_open_square_brackets = false
+csharp_space_before_semicolon_in_for_statement = false
+csharp_space_between_empty_square_brackets = false
+csharp_space_between_method_call_empty_parameter_list_parentheses = false
+csharp_space_between_method_call_name_and_opening_parenthesis = false
+csharp_space_between_method_call_parameter_list_parentheses = false
+csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
+csharp_space_between_method_declaration_name_and_open_parenthesis = false
+csharp_space_between_method_declaration_parameter_list_parentheses = false
+csharp_space_between_parentheses = false
+csharp_space_between_square_brackets = false
+
+# 包装首选项
+csharp_preserve_single_line_blocks = true
+csharp_preserve_single_line_statements = true
+
+#### 命名样式 ####
+
+# 命名规则
+
+dotnet_naming_rule.命名空间_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.命名空间_should_be_pascalcase.symbols = 命名空间
+dotnet_naming_rule.命名空间_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.类型_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.类型_should_be_pascalcase.symbols = 类型
+dotnet_naming_rule.类型_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.接口_should_be_interface.severity = suggestion
+dotnet_naming_rule.接口_should_be_interface.symbols = 接口
+dotnet_naming_rule.接口_should_be_interface.style = interface
+
+dotnet_naming_rule.抽象类_should_be_abstractmethod.severity = suggestion
+dotnet_naming_rule.抽象类_should_be_abstractmethod.symbols = 抽象类
+dotnet_naming_rule.抽象类_should_be_abstractmethod.style = abstractmethod
+
+dotnet_naming_rule.非字段成员_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.非字段成员_should_be_pascalcase.symbols = 非字段成员
+dotnet_naming_rule.非字段成员_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.类型参数_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.类型参数_should_be_pascalcase.symbols = 类型参数
+dotnet_naming_rule.类型参数_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.公共字段_should_be_pascalcase.severity = suggestion
+dotnet_naming_rule.公共字段_should_be_pascalcase.symbols = 公共字段
+dotnet_naming_rule.公共字段_should_be_pascalcase.style = pascalcase
+
+dotnet_naming_rule.字段_should_be__camelcase.severity = suggestion
+dotnet_naming_rule.字段_should_be__camelcase.symbols = 字段
+dotnet_naming_rule.字段_should_be__camelcase.style = _camelcase
+
+dotnet_naming_rule.局部参数_should_be_camelcase.severity = suggestion
+dotnet_naming_rule.局部参数_should_be_camelcase.symbols = 局部参数
+dotnet_naming_rule.局部参数_should_be_camelcase.style = camelcase
+
+dotnet_naming_rule.异步方法_should_be_asyncmethod.severity = suggestion
+dotnet_naming_rule.异步方法_should_be_asyncmethod.symbols = 异步方法
+dotnet_naming_rule.异步方法_should_be_asyncmethod.style = asyncmethod
+
+# 符号规范
+
+dotnet_naming_symbols.命名空间.applicable_kinds = namespace
+dotnet_naming_symbols.命名空间.applicable_accessibilities = *
+dotnet_naming_symbols.命名空间.required_modifiers = 
+
+dotnet_naming_symbols.类型.applicable_kinds = class, struct, interface, enum
+dotnet_naming_symbols.类型.applicable_accessibilities = *
+dotnet_naming_symbols.类型.required_modifiers = 
+
+dotnet_naming_symbols.接口.applicable_kinds = interface
+dotnet_naming_symbols.接口.applicable_accessibilities = *
+dotnet_naming_symbols.接口.required_modifiers = 
+
+dotnet_naming_symbols.抽象类.applicable_kinds = class
+dotnet_naming_symbols.抽象类.applicable_accessibilities = *
+dotnet_naming_symbols.抽象类.required_modifiers = abstract
+
+dotnet_naming_symbols.非字段成员.applicable_kinds = property, event, delegate, method, local_function
+dotnet_naming_symbols.非字段成员.applicable_accessibilities = *
+dotnet_naming_symbols.非字段成员.required_modifiers = 
+
+dotnet_naming_symbols.类型参数.applicable_kinds = type_parameter
+dotnet_naming_symbols.类型参数.applicable_accessibilities = *
+dotnet_naming_symbols.类型参数.required_modifiers = 
+
+dotnet_naming_symbols.字段.applicable_kinds = field
+dotnet_naming_symbols.字段.applicable_accessibilities = *
+dotnet_naming_symbols.字段.required_modifiers = 
+
+dotnet_naming_symbols.公共字段.applicable_kinds = field
+dotnet_naming_symbols.公共字段.applicable_accessibilities = public, internal
+dotnet_naming_symbols.公共字段.required_modifiers = 
+
+dotnet_naming_symbols.局部参数.applicable_kinds = parameter, local
+dotnet_naming_symbols.局部参数.applicable_accessibilities = *
+dotnet_naming_symbols.局部参数.required_modifiers = 
+
+dotnet_naming_symbols.异步方法.applicable_kinds = method, local_function
+dotnet_naming_symbols.异步方法.applicable_accessibilities = *
+dotnet_naming_symbols.异步方法.required_modifiers = async
+
+# 命名样式
+
+dotnet_naming_style.pascalcase.required_prefix = 
+dotnet_naming_style.pascalcase.required_suffix = 
+dotnet_naming_style.pascalcase.word_separator = 
+dotnet_naming_style.pascalcase.capitalization = pascal_case
+
+dotnet_naming_style.camelcase.required_prefix = 
+dotnet_naming_style.camelcase.required_suffix = 
+dotnet_naming_style.camelcase.word_separator = 
+dotnet_naming_style.camelcase.capitalization = camel_case
+
+dotnet_naming_style._camelcase.required_prefix = _
+dotnet_naming_style._camelcase.required_suffix = 
+dotnet_naming_style._camelcase.word_separator = 
+dotnet_naming_style._camelcase.capitalization = camel_case
+
+dotnet_naming_style.interface.required_prefix = I
+dotnet_naming_style.interface.required_suffix = 
+dotnet_naming_style.interface.word_separator = 
+dotnet_naming_style.interface.capitalization = pascal_case
+
+dotnet_naming_style.abstractmethod.required_prefix = 
+dotnet_naming_style.abstractmethod.required_suffix = Base
+dotnet_naming_style.abstractmethod.word_separator = 
+dotnet_naming_style.abstractmethod.capitalization = pascal_case
+
+dotnet_naming_style.asyncmethod.required_prefix = 
+dotnet_naming_style.asyncmethod.required_suffix = Async
+dotnet_naming_style.asyncmethod.word_separator = 
+dotnet_naming_style.asyncmethod.capitalization = pascal_case

.gitattributes

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+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln       merge=binary
+#*.csproj    merge=binary
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg   binary
+#*.png   binary
+#*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain