#include int main ( void ) { int i, j; int P = 1000; float d = 0.435; if ( fabs ( 435 - ( P * d ) ) < 1e-4 ) //遵循1 { i = 1; } else { i = 2; } if ( ( 435 >= ( P * d ) + 1e-4 ) || ( 435 <= ( P * d ) - 1e-4 ) ) //遵循2 { j = 1; } else { j = 2; } return ( 0 ); }