C#、C++、Ja、Python选择哪个好？

///<summary> ///修改登录密码 ///</summary> ///<paramname="oj"></param> ///<retns></retns> ///<exceptioncref="Exception"></exception> pulicintChangePwd(Sysoj) { stringsql="updatessetLoginPwd='{0}'whereLoginId={1}"; sql=string.Format(sql,oj.LoginPwd,oj.LoginId); try { retnSQLHelper.Update(sql); } catch(Exceptionex) { thrownewException("修改密码出现数据访问错误："+ex.Message); } } 04确认修改按钮 4.1、添加事件 双击【确认修改】按钮，添加对应事件， 4.2、事件思路 ①信息验证，输入信息非空验证，一致性验证，长度验证； ②调用相应方法修改密码； 4.3、事件代码 //密码修改 privatevoidtnChange_Click(ojectsender,EventArgse) { #region输入验证 //非空验证 if(this.txtOldPwd.Text.Trim().Length==0) { Messageox.Show("请先输入原密码！","雷工提示"); this.txtOldPwd.Focus(); retn; } if(this.txtNewPwd.Text.Trim().Length==0) { Messageox.Show("请输入新密码！","雷工提示"); this.txtNewPwd.Focus(); retn; } if(this.txtVerifyPwd.Text.Trim().Length==0) { Messageox.Show("请再次输入新密码！","雷工提示"); this.txtVerifyPwd.Focus(); retn; } //判断用户输入的原密码与当前登录密码是否一致 if(this.txtOldPwd.Text.Trim()!=Program.crentUser.LoginPwd) { Messageox.Show("输入的原密码错误！","雷工提示"); this.txtOldPwd.Focus(); this.txtOldPwd.SelectAll(); retn; } //判断新密码的长度 if(this.txtNewPwd.Text.Trim().Length<6) { Messageox.Show("新密码长度需大于6！","雷工提示"); this.txtNewPwd.Focus(); this.txtNewPwd.SelectAll(); retn; } //判断两次输入密码是否一致 if(this.txtNewPwd.Text.Trim()!=this.txtVerifyPwd.Text.Trim()) { Messageox.Show("两次输入的密码不一致！","雷工提示"); this.txtNewPwd.Focus(); this.txtNewPwd.SelectAll(); retn; } #endregion try { Sysoj=newSys() { LoginId=Program.crentUser.LoginId, LoginPwd=this.txtNewPwd.Text.Trim() }; if(newSysServ().ChangePwd(oj)==1) { Messageox.Show("密码修改成功！","雷工提示"); Program.crentUser.LoginPwd=this.txtNewPwd.Text.Trim(); this.Close(); } } catch(Exception) { throw; } } 05取消按钮 //取消密码修改 privatevoidtnCancel_Click(ojectsender,EventArgse) { this.Close(); } 06后记