C++ 编程/代码/标准 C 库/函数/abs

abs

语法	#include <cstdlib> int abs( int num );

abs() 函数返回 num 的绝对值。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;

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