C++ 程式設計/程式碼/標準 C 庫/函式/abs
| 語法 |
#include <cstdlib>
int abs( int num );
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abs() 函式返回 num 的絕對值。例如
int magic_number = 10;
cout << "Enter a guess: ";
cin >> x;
cout << "Your guess was " << abs( magic_number - x ) << " away from the magic number." << endl;