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Anonymous users2024-02-05line method.
Draw straight lines and rectangles on objects.
Grammar. [step] (x1, 1) [step] (x2, y2), color], b][f]
The syntax of the line method has the following object qualifiers and sections:
Section description.
object is optional. An object expression whose value is Applied To to an object in the list. If the object is omitted, the form with focus is the object.
step Optional. keyword, specifying the start coordinates, which are relative to the current drawing position provided by the currentx and currenty properties.
x1, y1) optional. single (single-precision floating-point number), the coordinates of the start of a line or rectangle. The scalemode property determines the unit of measurement used.
If omitted, the line starts at the position indicated by currentx and currenty.
step Optional. keyword, specifying the end coordinates relative to the start point of the line.
x2, y2) required. single (single-precision floating-point number), the end coordinates of a line or rectangle.
color is optional. long, the RGB color used to draw the line. If it is omitted, the forecolor property value is used. You can specify the color using either the RGB function or the qbcolor function.
b Optional. If it is included, the rectangle is drawn using diagonal coordinates.
f Optional. If the b option is used, the f option specifies that the rectangle is filled with the color of the rectangular border. You can't use F instead of b.
If you don't use F light with B, then the rectangle is filled with the current FillColor and FillStyle. The default value for fillstyle is transparent.
Illustrate. When drawing a connected line, the end point of the previous line is the beginning of the next line.
The width of the line depends on the value of the drawwidth property. The method of drawing lines and rectangles on the background depends on the drawmode and drawstyle property values.
When the line method is executed, the currentx and currenty properties are set to the end point by the parameters.
This method cannot be used with....end with statement block.
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A is not true. First of all, the temperature has an effect on the solubility, such as the 30 degrees of potassium nitrate saturated solution to 40 degrees, it is no longer a saturated solution, and then add a little potassium nitrate, less than the saturated state, but its concentration is already larger than the concentration of the saturated solution at 30 degrees, in addition, the solubility of some substances is reduced with the rise of temperature. Such as some gases. >>>More
Good question, write with a for loop and judgment statement. >>>More