10-1 ?本概念

b MATLAB AƭӦr]Characters^iHc@Ӧr]Strings^A@ӦrOQ@ӦCVq]Row Vector^ixsAӦ@rꤤC@r]tťզr^AOH ASCII XΦs󦹦CVqC@Ӥ]Element^AuO~ΦMOiŪrCҦpG

Example 1: 10-rPr/string101.msentence = 'Draft beer, not people' % إߦrܼ sentence sentence = Draft beer, not people

hӦrܼƥiñơAHo@ӷsrܼơAҦpG

Example 2: 10-rPr/string102.mstr1 = 'I like MATLAB,'; % إߦrܼ str1 str2 = ' JavaScript, and C++!'; % إߦrܼ str2 str3 = [str1 str2] % CñƦrܼ str1 str2A % Hإߤ@ӷsrܼ str3 str3 = I like MATLAB, JavaScript, and C++!

Hint
MATLAB Ρu޸]Single Quote^vӬɩwrܼơA C yhOΡu޸]Double Quote^vӬɩwrܼơAoO̤PBC]@Ipc̡G MATLAB M C y@˩OH`Fڭ̳oǨW{]pvFI^

Jt޸rAiг޸ϥΡAҦpG

Example 3: 10-rPr/string103.msentence = 'I''ve got a date!' % Сu'vϥ sentence = I've got a date!

Ynprܼƪס]YզrӼơ^Ai length OG

Example 4: 10-rPr/string104.msentence = 'I''ve got a date!'; length(sentence) % prܼ sentence ans = 16

Yn˵rܼƪxse]Y ASCII X^Aiϥ double OAҦpG

Example 5: 10-rPr/string105.msentence = 'I''ve got a date!'; sentenceAscii = double(sentence) % ˵ sentence ASCII X sentenceAscii = Columns 1 through 11 73 39 118 101 32 103 111 116 32 97 32 Columns 12 through 16 100 97 116 101 33

YnN ASCII X^rΦAi char OAҦpG

Example 6: 10-rPr/string106.msentence = 'I''ve got a date!'; sentenceAscii = double(sentence); sentence2 = char(sentenceAscii) % N ASCII X^rΦ sentence2 = I've got a date!

ѩ MATLAB bxsrɡAL׬Oέ^AC@Ӧr|ΨӦ줸ա]2 Bytes^AGbWҤArܼ sentence `@ 16 ӦrcAΪO`pTQGӦ줸ա]32 bytes^Aiϥ whos O˵rܼ sentence ҦxsŶG

Example 7: 10-rPr/string107.msentence = 'I''ve got a date!'; whos sentence % ˵u@Ŷܼ sentence ΰOjp Name Size Bytes Class Attributes sentence 1x16 32 char

ѩ MATLAB OHӦ줸ըxs@ӦrAҥH]iH䴩 Big5 XAӥB Big5 媺 ASCII X|jƦr 128AiҦpUG

Example 8: 10-rPr/string108.mchinese = 'ơA鲦'; abs(chinese) % 礤夺X ans = Columns 1 through 5 20170 26085 20107 65292 20170 Columns 6 through 7 26085 30050

Ъ`NAѩ MATLAB NrH۹ ASCII X]YƦrΦ^xs@CVqAGY惡rꪽiƭȹBAMATLAB |NrনƭȡAAi@ƭȦVqBAҦpG

Example 9: 10-rPr/string109.mchinese = 'ơA鲦'; x = chinese+1 x = Columns 1 through 5 20171 26086 20108 65293 20171 Columns 6 through 7 26086 30051

Hint
󤤤媺BzAMATLAB bĤ]t^HeOϥΤjXAbĤC}lA unicodeA]WzӽdҡAYAϥβĤӰAo쪺GOHjXXƭȨܡAMڭ̪dҵG|@ˡC

Yn""Y@SwrAiHϥ eval OAĪGNpPb MATLAB OJ@SwrAҦpG

Example 10: 10-rPr/string110.mstr = 'x = [1 2 3]; y = x.^2'; eval(str) y = 1 4 9

GM MATLAB ROJux = [1 2 3]; y = x.^2vGOۦPCeval OSOAΩb for - loop ۰ʲͦWߪܼƦW١AҦpG

Example 11: 10-rPr/string111.mclear all % MҦܼ for i = 3:6 eval(['x', int2str(i) , '= magic(' , int2str(i) , ') ; ']); end whos x* Name Size Bytes Class Attributes x3 3x3 72 double x4 4x4 128 double x5 5x5 200 double x6 6x6 288 double

ѤWi x3 , x4 , x5 , x6 Ob for - loop ܼͪơAON׬ 33B44B55B66 ]}C]]}ʽOG䪽BCι﨤u`M۵C^

Hint
  • t@өM eval ܹOO fevalAiHϥΦrӥN禡W١Aöi惡禡IsAҦpGfeval('magic', 5) M magic(5) OۦPĪGA|Ǧ^@Ӻ׬ 5X5 ]}C
  • mfilename OiǦ^OҦb M ɮס]ШѲĤQ^ɮצW١C


MATLAB{]pGJg