pb_change.m

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function pb_change(pb_htable,name)
% 改变电话本中的记录
% 如果找到用户，那么通过else块来显示
entry = pb_htable.get(pb_keyfilter(name));
if isempty(entry)
   disp(sprintf('The name %s is not in the phone book', name));
   return;
else
   pb_display(entry);
   r = input('Replace phone numbers in this entry (y/n)? ','s');
   if r ~= 'y'
      return;
   end;
end;
% 输入新的电话号码
disp 'Type in the new phone number(s), one per line.'
disp 'To complete the entry, type an extra Enter.'
disp(sprintf(':: %s', name));
entry=[name '^'];
while 1
   line = input(':: ','s');
   if isempty(line)
      break;
   else
      entry=[entry line '^'];
   end;
end;
pb_htable.put(pb_keyfilter(name),entry);
disp ' '
disp(sprintf('The entry for %s has been changed', name));