C#遗传算法（常用7种遗传算法源码实例）

//----------------------------------------------------------------------------------------------------------- private void Form1_Load(object sender, EventArgs e) { //fx=x^2 //x:0,30 //30=16+8+4+2+0 //30=11110 _old_G[0] = "01100"; _old_G[1] = "00001"; _old_G[2] = "00011"; _old_G[3] = "00101"; _Select(); _Cross_Over(); return; // int x1 = 12; int x2 = 1; int x3 = 3; int x4 = 5; string s1 = "01100"; string s2 = "00001"; string s3 = "00011"; string s4 = "00101"; double fm = func(x1) + func(x2) + func(x3) + func(x4); double p1 = func(x1) / fm; double p2 = func(x2) / fm; double p3 = func(x3) / fm; double p4 = func(x4) / fm; //MessageBox.Show(p1.ToString() + "," + p2.ToString() + "," + p3.ToString() + "," + p4.ToString() + "," + (p1 + p2 + p3 + p4).ToString()); string[] chosen_str = new string[4]; // 选择 for (int i = 0; i <= 3; i++) { double p = get_rnd_double_from_0_to_1(GetRandomSeed()); if (p >= 0 && p < p1) { chosen_str[i] = s1; // MessageBox.Show("12"); } else { if (p >= p1 && p < p1 + p2) { chosen_str[i] = s2; // MessageBox.Show("1"); } else { if (p >= p1 + p2 && p < p1 + p2 + p3) { chosen_str[i] = s3; // MessageBox.Show("3"); } else { chosen_str[i] = s4; // MessageBox.Show("5"); } } } } //MessageBox.Show(chosen_str[0]); //交叉 int pos1 = get_rnd_int_from(0, 4, GetRandomSeed()); int pos2 = get_rnd_int_from(0, 4, GetRandomSeed()); string fa_1 = ""; string fa_2 = ""; string mo_1 = ""; string mo_2 = ""; for (int i = 0; i < pos1 + 1; i++) { fa_1 = fa_1 + s1[i].ToString(); mo_1 = mo_1 + s2[i].ToString(); } for (int i = pos1 + 1; i <= 4; i++) { fa_2 = fa_2 + s1[i].ToString(); mo_2 = mo_2 + s2[i].ToString(); } //MessageBox.Show(fa_1.ToString() + "," + fa_2.ToString()); string new_s1 = fa_1 + mo_2; string new_s2 = mo_1 + fa_2; byte b1 = Convert.ToByte(new_s1, 2); byte b2 = Convert.ToByte(new_s2, 2); MessageBox.Show(b1.ToString() + "," + b2.ToString()); }