原始档:http://140.130.175.96/cal.c 执行档:http://140.130.175.96/cal.exe double getreward(double v) { double reward_v = 0.0; double v_error = 0.0; double u = 0.6; double ideal_v = 5.0; v_error = ideal_v - v; printf("v_error= %f\n", v_error); v_error = fabs( v_error); printf("v_error1= %f\n", v_error); if(v_error <= u){ reward_v = 1;//u/(v_error+0.05) *2; } else { reward_v = 0 - v_error; } return reward_v; } int main(void) { double ran_v = 0; double reward = 0 ; int i = 0 ; for(i=1; i<=5 ; i++){ ran_v = 4.1 + i * 0.3 ; printf("ran_v= %f\n", ran_v); reward = getreward(ran_v); printf("reward= %f\n\n", reward); } system("pause"); } 我想请问的是 执行结果 ran_v = 4.4 v_error = 0.6 这个时候为什麽跑不进那个if回圈中 但是 ran_v =5.6 v_error = 0.6 这个时候却可以? 麻烦一下可以告诉我原因吗? --

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