<pre><code>import itertools
listTags = [ "TOT" , "WBA", "BUR", "SOU", "HUL", "SUN", "STK", "SWA", "ARS", "CHE", "MUN", "WHU", "WAT", "MID", "WHU", "CRY", "LEI", "EVE", "MCI", "LIV"]
combinations = ['#' + x + y for x, y in itertools.combinations(listTags, 2)]
print(combinations)
</code></pre>
<p><strong>输出</strong></p>
<pre><code>['#TOTWBA', '#TOTBUR', '#TOTSOU', '#TOTHUL', '#TOTSUN', '#TOTSTK', '#TOTSWA', '#TOTARS', '#TOTCHE', '#TOTMUN', '#TOTWHU', '#TOTWAT', '#TOTMID', '#TOTWHU', '#TOTCRY', '#TOTLEI', '#TOTEVE', '#TOTMCI', '#TOTLIV', '#WBABUR', '#WBASOU', '#WBAHUL', '#WBASUN', '#WBASTK', '#WBASWA', '#WBAARS', '#WBACHE', '#WBAMUN', '#WBAWHU', '#WBAWAT', '#WBAMID', '#WBAWHU', '#WBACRY', '#WBALEI', '#WBAEVE', '#WBAMCI', '#WBALIV', '#BURSOU', '#BURHUL', '#BURSUN', '#BURSTK', '#BURSWA', '#BURARS', '#BURCHE', '#BURMUN', '#BURWHU', '#BURWAT', '#BURMID', '#BURWHU', '#BURCRY', '#BURLEI', '#BUREVE', '#BURMCI', '#BURLIV', '#SOUHUL', '#SOUSUN', '#SOUSTK', '#SOUSWA', '#SOUARS', '#SOUCHE', '#SOUMUN', '#SOUWHU', '#SOUWAT', '#SOUMID', '#SOUWHU', '#SOUCRY', '#SOULEI', '#SOUEVE', '#SOUMCI', '#SOULIV', '#HULSUN', '#HULSTK', '#HULSWA', '#HULARS', '#HULCHE', '#HULMUN', '#HULWHU', '#HULWAT', '#HULMID', '#HULWHU', '#HULCRY', '#HULLEI', '#HULEVE', '#HULMCI', '#HULLIV', '#SUNSTK', '#SUNSWA', '#SUNARS', '#SUNCHE', '#SUNMUN', '#SUNWHU', '#SUNWAT', '#SUNMID', '#SUNWHU', '#SUNCRY', '#SUNLEI', '#SUNEVE', '#SUNMCI', '#SUNLIV', '#STKSWA', '#STKARS', '#STKCHE', '#STKMUN', '#STKWHU', '#STKWAT', '#STKMID', '#STKWHU', '#STKCRY', '#STKLEI', '#STKEVE', '#STKMCI', '#STKLIV', '#SWAARS', '#SWACHE', '#SWAMUN', '#SWAWHU', '#SWAWAT', '#SWAMID', '#SWAWHU', '#SWACRY', '#SWALEI', '#SWAEVE', '#SWAMCI', '#SWALIV', '#ARSCHE', '#ARSMUN', '#ARSWHU', '#ARSWAT', '#ARSMID', '#ARSWHU', '#ARSCRY', '#ARSLEI', '#ARSEVE', '#ARSMCI', '#ARSLIV', '#CHEMUN', '#CHEWHU', '#CHEWAT', '#CHEMID', '#CHEWHU', '#CHECRY', '#CHELEI', '#CHEEVE', '#CHEMCI', '#CHELIV', '#MUNWHU', '#MUNWAT', '#MUNMID', '#MUNWHU', '#MUNCRY', '#MUNLEI', '#MUNEVE', '#MUNMCI', '#MUNLIV', '#WHUWAT', '#WHUMID', '#WHUWHU', '#WHUCRY', '#WHULEI', '#WHUEVE', '#WHUMCI', '#WHULIV', '#WATMID', '#WATWHU', '#WATCRY', '#WATLEI', '#WATEVE', '#WATMCI', '#WATLIV', '#MIDWHU', '#MIDCRY', '#MIDLEI', '#MIDEVE', '#MIDMCI', '#MIDLIV', '#WHUCRY', '#WHULEI', '#WHUEVE', '#WHUMCI', '#WHULIV', '#CRYLEI', '#CRYEVE', '#CRYMCI', '#CRYLIV', '#LEIEVE', '#LEIMCI', '#LEILIV', '#EVEMCI', '#EVELIV', '#MCILIV']
</code></pre>
<p>这个答案依赖于<code>itertools.combinations</code>的使用:</p>
<blockquote>
<p><strong>itertools.combinations(iterable, r)</strong></p>
<p>Return r length subsequences of elements from the input iterable.</p>
<p>Combinations are emitted in lexicographic sort order. So, if the input iterable is sorted, the combination tuples will be produced in sorted order.</p>
<p>Elements are treated as unique based on their position, not on their value. So if the input elements are unique, there will be no repeat values in each combination.</p>
</blockquote>