public static Operation createOperate(string operate)
{
Operation oper = null;
switch (operate)
{
case "+":
oper = new OperationAdd();
break;
case "-":
oper = new OperationSub();
break;
case "*":
oper = new OperationMul();
break;
case "/":
oper = new OperationDiv();
break;
default:
break;
}
return(oper);
}
public static Operation CreateOperate(string operate)
{
//根据传入的参数operate选择实例化的类
Operation oper = null;
switch (operate)
{
case "+":
oper = new OperationAdd();
break;
case "-":
oper = new OperationSub();
break;
case "*":
oper = new OperationMul();
break;
case "/":
oper = new OperationDiv();
break;
}
return(oper);
}
public static Operation CreateOperate(string operate)
{
Operation operation = null;
switch (operate)
{
case "+": {
operation = new OperationAdd();
break;
}
case "-": {
operation = new OperationSub();
break;
}
case "*": {
operation = new OperationMul();
break;
}
case "/": {
operation = new OperationDiv();
break;
}
}
return(operation);
}
public static Operation CreatOperate(string operate)
{
Operation oper = null;
switch (operate)
{
case "+":
oper = new OperationAdd();
break;
case "-":
oper = new OperationSub();
break;
case "*":
oper = new OperationMul();
break;
case "/":
oper = new OperationDiv();
break;
default:
throw new Exception("input error");
}
return(oper);
}
public static Operation CreateFactory(string operation)
{
Operation oper = null;
switch (operation)
{
case "+":
{
oper = new OperationAdd();
break;
}
case "-":
{
oper = new OperationSub();
break;
}
case "*":
{
oper = new OperationMul();
break;
}
case "/":
{
oper = new OperationDiv();
break;
}
case "sqr":
{
oper = new OperationSqr();
break;
}
case "sqrt":
{
oper = new OperationSqrt();
break;
}
case "+/-":
{
oper = new OperationReverse();
break;
}
}
return(oper);
}
public static Operation CreateOperation(string op)
{
Operation oper = null;
switch (op)
{
case "+":
oper = new OperationAdd();
break;
case "-":
oper = new OperationSub();
break;
case "*":
oper = new OperationMul();
break;
case "/":
oper = new OperationDiv();
break;
}
return oper;
}
public static Operation createOperate(string operate)
{
Operation oper = null;
switch (operate)
{
case "+":
oper = new OperationAdd();
break;
case "-":
oper = new OperationSub();
break;
case "*":
oper = new OperationMul();
break;
case "/":
oper = new OperationDiv();
break;
case "sqr":
oper = new OperationSqr();
break;
case "sqrt":
oper = new OperationSqrt();
break;
case "+/-":
oper = new OperationReverse();
break;
}
return(oper);
}
public static Operation CreateOperation(String operation)
{
Operation o = null;
switch (operation)
{
case "+":
o = new OperationAdd();
break;
case "-":
o = new OperationSub();
break;
case "*":
o = new OperationMul();
break;
case "/":
o = new OperationDiv();
break;
}
return(o);
}
public static Operation createOperate(string operate)
{
Operation oper = null;
switch (operate)
{
case "+":
oper = new OperationAdd();
break;
case "-":
oper = new OperationSub();
break;
case "*":
oper = new OperationMul();
break;
case "/":
oper = new OperationDiv();
break;
case "sqr":
oper = new OperationSqr();
break;
case "sqrt":
oper = new OperationSqrt();
break;
case "+/-":
oper = new OperationReverse();
break;
}
return oper;
}