Robot

A robot comprising:

• a work tool executing a work on a plurality of points on a work-piece;
• a moving unit moving the work tool to the point;
• and
• a controller controlling the work tool and the moving unit in accordance with a program,
• wherein:
• the controller comprises:
• a first memory storing a first program, the first program containing statements arranged in sequence for each of the points, the statement containing kind information indicating control details by the controller, and coordinate information on the point;
• a second memory storing a second program, the second program identified by the kind information, comprising an instruction sequence containing a variable, and defining the control details;
• a third memory storing a plurality of parameters, the parameter being a substitution candidate for a single kind of the variable;
• a determining unit determining the parameter to be substituted in the single kind of the variable for each of the statements;
• and
• a change unit interlinking again one of memory areas where the parameters are stored with the variable for each of the statements in accordance with a determination result by the determining unit.