Performance issues in C #

Source code

Object [] objs1 = new object [10];

Foreach (Object OBJ in objs1)

{

Console. writeline (obj. tostring ());

}

CompiledCode

Object []Objarray2= Objarray1;

For (intNum2= 0; num2 <objarray2.length; num2 ++)

{

ObjectObj1= Objarray2 [num2];

Console. writeline (obj1.tostring ());

}

Source code

Object [] objs1 = new object [10];

For (INT Index = 0; index <objs1.length; ++ index)

{

Console. writeline (objs1 [Index]. tostring ());

}

Compiled code

Object []Objarray2= Objarray1;

For (intNum1= 0; num1 <objarray1.length; num1 ++)

{

Console. writeline (objarray1 [num1]. tostring ());

}

That is to say, foreach will generate some additional code, and the efficiency is not directly high with the for loop.