7. A non-transitory computer-readable storage medium having stored a program which is executable by a computer, the program controlling the computer to execute functions of: inputting strokes in handwriting; displaying a first character and a second character in a font size, the first character corresponding to a first handwritten character detected from the strokes, the second character corresponding to a second handwritten character detected from the strokes, the font size determined based on a combination of an attribute of the first character and a size of at least one stroke corresponding to the first handwritten character or a combination of an attribute of the second character and a size of at least one stroke corresponding to the second handwritten character, wherein an attribute of a character is determined based on a shape of the character included in a region comprising one or more of partial regions, wherein: the region comprises a first partial region, a second partial region and a third partial region; a character of a first attribute has a shape included in the first partial region and the second partial region; a character of a second attribute has a shape included in the second partial region; a character of a third attribute has a shape included in the second partial region and the third partial region; and a character of a fourth attribute has a shape included in the first partial region, the second partial region and the third partial region.
7. A non-transitory computer-readable storage medium having stored a program which is executable by a computer, the program controlling the computer to execute functions of: inputting strokes in handwriting; displaying a first character and a second character in a font size, the first character corresponding to a first handwritten character detected from the strokes, the second character corresponding to a second handwritten character detected from the strokes, the font size determined based on a combination of an attribute of the first character and a size of at least one stroke corresponding to the first handwritten character or a combination of an attribute of the second character and a size of at least one stroke corresponding to the second handwritten character, wherein an attribute of a character is determined based on a shape of the character included in a region comprising one or more of partial regions, wherein: the region comprises a first partial region, a second partial region and a third partial region; a character of a first attribute has a shape included in the first partial region and the second partial region; a character of a second attribute has a shape included in the second partial region; a character of a third attribute has a shape included in the second partial region and the third partial region; and a character of a fourth attribute has a shape included in the first partial region, the second partial region and the third partial region. 9. The storage medium of claim 7 , wherein the displaying comprises displaying, the first character and the second character in the font size determined based on a combination of the first attribute and the size of the at least one stroke, when the first handwritten character is a start character of a line.