例如输入a3,解码后就是aaa；输入goo12le就是gooooooooooooole；输入XXX为结束。鄙人新手，点都不会.....麻烦来点简单的...初学者，不会高深的语法。最好是循环解决的....
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auto decode = [](string origin) { vectortarget;
for (int pos, i = 0; i = 'a'&&origin[i] = '0'&&origin[i] = '0'&&origin[i] string
char *buffer = new char[target.size()+1];
for (int i = 0; i 记录1个pos就行了。