Ruby 与要删除的方案关联的模块。Re。代码的第二部分-scheme\u exists类似于module\u exists，只是它检查方案是否存在，而不是模块是否存在。。。方案和模块是两个不同的东西。@Someone2088代码是相同的，只是映射不同。相同的代码。

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与要删除的方案关联的模块。Re。代码的第二部分-

scheme\u exists

类似于

module\u exists

，只是它检查方案是否存在，而不是模块是否存在。。。方案和模块是两个不同的东西。@Someone2088代码是相同的，只是映射不同。相同的代码。你不一定要相信或理解我说的话，但最终如果你想让其他人能够阅读你的代码，你需要做大量的修改。现在真的很难摸索。对不起，你说的地图是什么意思？

def self.add_module
# schemes = {}
 scheme_exists = false
 add_another_scheme = true
# module_exists = false
 add_another_module = true

 while add_another_scheme
   print "Enter scheme name: "
   scheme_name = gets
   $schemes.has_key?(scheme_name.chop) ? scheme_exists = true : scheme_exists = false

   if !scheme_exists
     $schemes[scheme_name.chop] = []
     puts "Scheme #{scheme_name.chop} has been added to the system"
   elsif
     scheme_exists = true
     puts "This scheme has already been added"
   end

   while add_another_module
     print "Enter module name: "
     module_name = gets
     $schemes[scheme_name.chop].include?(module_name.chop) ? true : $schemes[scheme_name.chop] << module_name.chop
    # puts "Module #{module_name.chop} has been added to #{scheme_name.chop}"

     # 22/08/2012 at 14:15 Now need to read in each module's unique identifier and year it belongs to
     print "Enter module ID: "
     $module_ID =gets
     $schemes[scheme_name.chop].include?($module_ID.chop) ? true : $schemes[scheme_name.chop] << $module_ID.chop
     $schemes.has_key?($module_ID.chop) ? module_exists = true : module_exists = false

     print "Enter the academic year to which the module belongs: "
     module_year = gets
     $schemes[scheme_name.chop].include?(module_year.chop) ? true : $schemes[scheme_name.chop] << module_year.chop

     if !$module_exists
       $schemes[$module_ID.chop] = []
       puts "Module #{$module_ID.chop} : #{module_name.chop} has been added to #{scheme_name.chop} for the year #{module_year}"
     elsif
       $module_exists = true
       puts "A module with this ID has already been added to the scheme, please check if the module already exists, or choose another ID "
     else
     #  puts "Module #{module_name.chop}, #{module_ID.chop} has been added to #{scheme_name.chop} for the year #{module_year}"
     end

    # puts "Module #{module_name.chop}, #{module_ID.chop} has been added to #{scheme_name.chop}"

     print "Add another module? "
     ask_if_user_wants_to_add_another_module = gets
     if(ask_if_user_wants_to_add_another_module.chop == "y" or ask_if_user_wants_to_add_another_module == "yes")
      add_another_scheme = false
     else if(ask_if_user_wants_to_add_another_module.chop != "y" or ask_if_user_wants_to_add_another_module != "yes")
       Application.main_menu
          end
   end

 end

def self.remove_module

 print "Which scheme would you like to remove a module from? "
 scheme_name = gets
 $schemes.has_key?(scheme_name.chop) ? scheme_exists = true : scheme_exists = false

 if !scheme_exists
   $schemes[scheme_name.chop] = []
   puts "Scheme #{scheme_name.chop} doesn't exist"
 else
 scheme_exists = true
   puts "Which module would you like to remove from #{scheme_name.chop}?"
   $module_ID = gets
   if !$module_exists
     $schemes[$module_ID.chop] = []
     puts "Module #{$module_ID.chop} : does not exist in #{scheme_name.chop} "
   else
     module_exists = true
     puts "Module #{$module_ID.chop} has been removed from #{scheme_name.chop} "
   #  puts "Module #{module_name.chop}, #{module_ID.chop} has been added to #{scheme_name.chop} for the year #{module_year}"
 end
 end

end

$schemes.has_key?(scheme_name.chop) ? scheme_exists = true : scheme_exists = false
# Did you mean:
scheme_exists = $schemes.has_key?(scheme_name.chop)

if !scheme_exists
  $schemes[scheme_name.chop] = []
  puts "Scheme #{scheme_name.chop} doesn't exist"
else
  scheme_exists = true
  # ...