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How to write a program in C++ such that it will delete itself after execution? - Stack Overflow #include <strsafe.h>#include <Windows.h> #define SELF_ 阅读全文
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int NumberAt(long num, int unit) { while (unit-- > 0) num /= 10; return num % 10; } int NumberLength(long num) { int len = 1, sum = 10; while (num >= 阅读全文