10-3 字串??較、??、代?、???結?

strcmp OΩrꤺePAҦpG

Example 1: 10-rPr/string301.mstr1 = 'today'; str2 = 'tomorrow'; str3 = 'today'; out1 = strcmp(str1, str2) % r str1 M str2 out2 = strcmp(str1, str3) % r str1 M str3 out1 = 0 out2 = 1

ѤWұoAout1 ȬO 0A str1 M str2 e۵Fout2 ȬO 1A str1 M str3 e۵C

Hint
bC yAstrcmp O]Ψӧ@rAbr۵ɡA^ǭȬO 0AoM MATLAB strcmp OnۤϡCЯSOpߡI

strncmp OΩrꪺe n ӦrAҦpG

Example 2: 10-rPr/string302.mstr1 = 'today'; str2 = 'tomorrow'; strncmp(str1, str2, 2) % str1 str2 rꪺe 2 Ӧr ans = 1

strcmp strncmp OiΩr겧}CAҦpG

Example 3: 10-rPr/string303.mA = {'x_', 'x', ''}; % إߦr겧}C A B = {'x_', 'xn', 'Ὤ'}; % إߦr겧}C B out1 = strcmp(A, B) % r겧}C A P B CӤO_ۦP out2 = strncmp(A, B, 1) % r겧}C A P B CӤĤ@ӦrO_ۦP out1 = 1 0 0 out2 = 1 1 0

findstr OiHMbY@Ӫrꤤlr]Substrings^AöǦ^_lmAҦpG

Example 4: 10-rPr/string304.mstring = 'ڳ̳wBʬOy'; pattern = 'y'; position = findstr(string, pattern) position = 9

strrep OΩrMΥNAҦpG

Example 5: 10-rPr/string305.mstring = 'ڳ̳wBʬOy'; pattern = 'y'; pattern2 = 'y'; newString = strrep(string, pattern, pattern2) newString = ڳ̳wBʬOy

strtok Oiھڤ@wɦr]Delimiting Characters^AN@rѦƭӦrAw]ɦrťզrAҦpG

Example 6: 10-rPr/string306.minput_string = 'ee cs econ stat me'; remainder = input_string; parsed = ''; % إߤ@Ŧr}C while (any(remainder)) [chopped, remainder] = strtok(remainder); parsed = strvcat(parsed, chopped); end parsed parsed = ee cs econ stat me

bWҤAstrvcat O@άONѤUӪrꤺe]Yxsbrܼ chopped ^ [Gr}C parsed C

@ӨAYOb MATLAB OάO{XwtjXrAMATLAB 7.x |ϥ unicode xsXCOpGqɮŪrAh MATLAB |C@Ӥr byte ŪJAyuYlvC|ҨӻAbdҵ{ؿA@ɮ׬ubig5.txtvA䤺euڬORogervAڭ̥iΤUC{NɮפeŪܤ@ӦrܼơG

Example 7: 10-rPr/string307.mfid = fopen('big5.txt'); line = fgetl(fid) % Ū@CɮפeæLX fclose(fid); leng=length(line) % ܦrܼƪ line = ڬORoger leng = 7

]ŪrɤkAiԨѲĤQKuɮ׿XοJvC^bWzdҤAڭ̱Nrܼ line LXAoıeӤrwgܦýXAӥBline ׬O 9AӤO 7 AԬd]Aڭ̥i double ONন ASCII XAN@ؤFMG

Example 8: 10-rPr/string308.mfid = fopen('big5.txt'); line = fgetl(fid); % Ū@Cɮפe fclose(fid); double(line) % ܦrꤺX ans = Columns 1 through 5 25105 26159 82 111 103 Columns 6 through 7 101 114

MATLAB bŪJrɡANC@Ӥr 2-byte }ŪAyӤrܦ|ӦrꤸC]Yϥ MATLAB 6.xAM~[ݤXӡAxs覡ON@ӤrݦӳxsC^ѨMDAb MATLAB 7.x i native2unicode OAӱN媺 2-byte uXvb@_AҦpG

Example 9: 10-rPr/string309.mfid = fopen('big5.txt'); line = fgetl(fid); % Ū@Cɮפe fclose(fid); line2 = native2unicode(line, 'big5') % ϥ native2unicode NQ}rXb@_ leng = length(line2) % ܦr line2 = ڬORoger leng = 7

]ApGz{ݭn``Ūɮס]άO䥦 double bytes r^Anative2unicodeONOĄΥI

Ynb MATLAB 5.3 6.x WzdҡAбN native2unicode(line, 'big5') 令 xlate(line) AYioP˪GC

uxlatevOO̦V`qdߦpѨMWzDұo쪺ѵAb MATLAB 5.3 ~䴩Ab MATLAB 7.x wg\hCOO uundocumentedvA]b MATLAB uW䴩ίȥUC


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