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生成隨機字符串

我寫這段代碼來生成一個隨機字符串。我想知道是否有更好或替代的方法可以在沒有 for 循環的情況下執行此操作。

names default to here(1);

letters={"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"};

randstrlength=100;
randstr="";
for(ii=1, ii<=randstrlength, ii++,
 randstr=randstr || letters[Random Integer(26)];
);

randstr;