>> str='I have many good friends!'
str =
I have many good friends!
>> whos
  Name          Size                    Bytes  Class
  EXPLODE       1x5                        40  double array
  F1            1x12                       24  char array
  F2            1x12                       24  char array
  X             1x5                        40  double array
  a             1x28                      224  double array
  ans           1x12                       12  logical array
  label         1x5                       330  cell array
  s1            1x10                       20  char array
  s2            1x10                       20  char array
  s3            1x11                       22  char array
  str           1x25                       50  char array
  w             1x19                       38  char array
  x             1x4                        32  double array

Grand total is 173 elements using 876 bytes
>>
%另外，字符串內的單引號是由兩個連續的單引號來表示。字符串連接可以直接從數組連接中得到。繼續在命令窗口中輸入如下語句，并按Enter鍵確認。
>>u='we must study hard!'
u =
we must study hard!
>> v='and we should never forget our country!'
v =
and we should never forget our country!
>> w=[u,v]
w =
we must study hard!and we should never forget our country!
>>
%如同矩陣，字符串可以有多個行，但每行必須有相同數目的列數。因此，要用空格以使所有行有相同長度，繼續在命令窗口中輸入如下語句，并按Enter鍵確認。
>> t=[' xiao ming kao shang le daxue'
      'xiaofang meiyou kaoshangdaxue'] 
t =
 xiao ming kao shang le daxue
xiaofang meiyou kaoshangdaxue
>>              
%如果各列輸入的字符串長度不一致時，MATLAB 7將給出錯誤的提示。繼續在命令窗口中輸入如下語句，并按Enter鍵確認。
>> t=[' xiao ming kao shang le daxue'
'xiaofang meiyou kaoshang daxue']
??? Error using ==> vertcat
All rows in the bracketed expression must have the same 
number of columns.
>>




>> t=['China win 32 gold metals in the Olympic Games'
'and Chinese TAibei Team win 2 gold metals    '
'That doesn''t mean any thing                  ']
t =
China win 32 gold metals in the Olympic Games
and Chinese TAibei Team win 2 gold metals    
That doesn't mean any thing    
 >>      

>> t=['China win 32 gold metals in the Olympic Games'
      'and Chinese TAibei Team win 2 gold metals    '
      'That doesn''t mean any thing                 ']
??? Error using ==> vertcat
All rows in the bracketed expression must have the same 
number of columns.