abs()函数abs
语法:
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?? #include <stdlib.h> ?? int abs( int num ); |
功能: 函数返回参数num.的绝对值。例如:
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??? 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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