附件()是Eclipse代码格式文件，根据以下步骤导入到Eclipse中，帮助规范代码格式。
导入步骤：
1. Window -> Performances
2. Java -> Code Style -> Formatter -> Import
3. 选择导入文件，如：java-style.xml
<?xml version="1.0" encoding="UTF-8" standalone="no"?><profiles version="12"><profile kind="CodeFormatterProfile" name="lexiangbao-style" version="12"><setting id="org.eclipse.jdt.core.formatter.insert_space_after_ellipsis" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_declarations" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_annotation_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_allocation_expression" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_at_in_annotation_type_declaration" value="insert"/><setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_block_boundaries" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_parameters" value="insert"/><setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_for_parameter" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_package" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.blank_lines_after_imports" value="1"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_while" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_throws" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.comment.format_javadoc_comments" value="true"/><setting id="org.eclipse.jdt.core.formatter.indentation.size" value="4"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_increments" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_inits" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_anonymous_type_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for" value="insert"/><setting id="org.eclipse.jdt.core.formatter.disabling_tag" value="@formatter:off"/><setting id="org.eclipse.jdt.core.formatter.continuation_indentation" value="2"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_enum_constants" value="16|5|48"/><setting id="org.eclipse.jdt.core.formatter.blank_lines_before_imports" value="0"/><setting id="org.eclipse.jdt.core.formatter.blank_lines_after_package" value="1"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_binary_operator" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_local_declarations" value="insert"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_enum_constant" value="16"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_parameterized_type_reference" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.comment.indent_root_tags" value="true"/><setting id="org.eclipse.jdt.core.formatter.wrap_before_or_operator_multicatch" value="true"/><setting id="org.eclipse.jdt.core.formatter.enabling_tag" value="@formatter:on"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_brace_in_block" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_return" value="insert"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_method_declaration" value="16|4|48"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_parameter" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line" value="false"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_field" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_explicitconstructorcall_arguments" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_block" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_prefix_operator" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.blank_lines_between_type_declarations" value="2"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_brace_in_array_initializer" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_for" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_catch" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_arguments" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_method" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_switch" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_anonymous_type_declaration" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_parenthesized_expression" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column" value="false"/><setting id="org.eclipse.jdt.core.compiler.problem.enumIdentifier" value="error"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_and_in_type_parameter" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_inits" value="insert"/><setting id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_block" value="true"/><setting id="org.eclipse.jdt.core.formatter.brace_position_for_anonymous_type_declaration" value="end_of_line"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_invocation_arguments" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_switch" value="insert"/><setting id="org.eclipse.jdt.core.formatter.comment.line_length" value="100"/><setting id="org.eclipse.jdt.core.formatter.use_on_off_tags" value="false"/><setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_brackets_in_array_allocation_expression" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_constant" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_invocation" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_assignment_operator" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_for" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.comment.preserve_white_space_between_code_and_line_comments" value="false"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_local_variable" value="insert"/><setting id="org.eclipse.jdt.core.formatter.brace_position_for_method_declaration" value="end_of_line"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_invocation" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_union_type_in_multicatch" value="16"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_for" value="insert"/><setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body" value="0"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_arguments" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line" value="false"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_binary_expression" value="16"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_array_initializer" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_field_declarations" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_annotation" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_explicit_constructor_call" value="16|5|48"/><setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_annotation_declaration_header" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_superinterfaces" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_default" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_question_in_conditional" value="insert"/><setting id="org.eclipse.jdt.core.formatter.brace_position_for_block" value="end_of_line"/><setting id="org.eclipse.jdt.core.formatter.brace_position_for_constructor_declaration" value="end_of_line"/><setting id="org.eclipse.jdt.core.formatter.brace_position_for_lambda_body" value="end_of_line"/><setting id="org.eclipse.jdt.core.formatter.compact_else_if" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_invocation" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line" value="false"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_constructor_declaration" value="16|5|48"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments" value="insert"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_method_invocation" value="16|5|48"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_constructor_declaration" value="16|4|48"/><setting id="org.eclipse.jdt.core.compiler.problem.assertIdentifier" value="error"/><setting id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_block_comment" value="false"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_catch_in_try_statement" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_try" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_at_end_of_file_if_missing" value="insert"/><setting id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_javadoc_comment" value="false"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_array_initializer" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_binary_operator" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_unary_operator" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_expressions_in_array_initializer" value="16|5|80"/><setting id="org.eclipse.jdt.core.formatter.format_line_comment_starting_on_first_column" value="true"/><setting id="org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve" value="3"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_case" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_ellipsis" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_try_resources" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_assert" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_if" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_arguments" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_and_in_type_parameter" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_type_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_parenthesized_expression" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.comment.format_line_comments" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_labeled_statement" value="insert"/><setting id="org.eclipse.jdt.core.formatter.align_type_members_on_columns" value="false"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_assignment" value="16"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_method_body" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_type_header" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_enum_constant" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_type_declaration" value="32|4|80"/><setting id="org.eclipse.jdt.core.formatter.blank_lines_before_first_class_body_declaration" value="0"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_conditional_expression" value="48"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_parameters" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.format_guardian_clause_on_one_line" 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value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_parameters" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_arguments" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_cast" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert" value="insert"/><setting id="org.eclipse.jdt.core.formatter.blank_lines_before_member_type" value="0"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_while_in_do_statement" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_type_reference" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_parameterized_type_reference" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_qualified_allocation_expression" value="16|4|48"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_opening_brace_in_array_initializer" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.indent_breaks_compare_to_cases" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_if" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_try" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_cast" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.comment.format_block_comments" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_lambda_arrow" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.keep_imple_if_on_one_line" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_declaration" value="insert"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_method_declaration" value="16|5|48"/><setting id="org.eclipse.jdt.core.formatter.insert_space_between_brackets_in_array_type_reference" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_parameters" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_declaration_throws" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_allocation_expression" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_body" value="true"/><setting id="org.eclipse.jdt.core.formatter.alignment_for_multiple_fields" value="16"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_constant_arguments" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_prefix_operator" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.brace_position_for_array_initializer" value="end_of_line"/><setting id="org.eclipse.jdt.core.formatter.wrap_before_binary_operator" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_method_declaration" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_parameters" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_catch" value="do not insert"/><setting id="org.eclipse.jdt.core.compiler.compliance" value="1.8"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_bracket_in_array_reference" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_annotation" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_constant_arguments" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_local_declarations" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_annotation_type_declaration" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_reference" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.wrap_outer_expressions_when_nested" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_paren_in_cast" value="insert"/><setting id="org.eclipse.jdt.core.formatter.brace_position_for_enum_constant" value="end_of_line"/><setting id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration" value="end_of_line"/><setting id="org.eclipse.jdt.core.formatter.blank_lines_before_package" value="0"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation_type_member_declaration" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_while" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_enum_constant" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_explicitconstructorcall_arguments" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_parameters" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_lambda_arrow" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration" value="insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_throws" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.join_lines_in_comments" value="true"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional" value="insert"/><setting id="org.eclipse.jdt.core.formatter.comment.indent_parameter_description" value="false"/><setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.tabulation.char" value="space"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_field_declarations" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.blank_lines_between_import_groups" value="1"/><setting id="org.eclipse.jdt.core.formatter.lineSplit" value="100"/><setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_annotation" value="do not insert"/><setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch" value="insert"/></profile></profiles> |
4. OK
5. 选中要格式化的代码，通过右键菜单Source -> Format或快捷键Ctrl+Shift+F格式化代码