作业帮求大神指导简单的java画梯形问题import java.awt.*;public class Poly extends java.applet.Applet{public void paint_bg (Graphics g){int x[]={100,200,250,50,100};int y[]={50,50,200,200,50};int p=x.length;g.drawPolygon(x,y,p);}}运行后为什
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![求大神指导简单的java画梯形问题import java.awt.*;public class Poly extends java.applet.Applet{public void paint_bg (Graphics g){int x[]={100,200,250,50,100};int y[]={50,50,200,200,50};int p=x.length;g.drawPolygon(x,y,p);}}运行后为什](/uploads/image/z/13786159-31-9.jpg?t=%E6%B1%82%E5%A4%A7%E7%A5%9E%E6%8C%87%E5%AF%BC%E7%AE%80%E5%8D%95%E7%9A%84java%E7%94%BB%E6%A2%AF%E5%BD%A2%E9%97%AE%E9%A2%98import+java.awt.%2A%3Bpublic+class+Poly+extends+java.applet.Applet%7Bpublic+void+paint_bg+%28Graphics+g%29%7Bint+x%5B%5D%3D%7B100%2C200%2C250%2C50%2C100%7D%3Bint+y%5B%5D%3D%7B50%2C50%2C200%2C200%2C50%7D%3Bint+p%3Dx.length%3Bg.drawPolygon%28x%2Cy%2Cp%29%3B%7D%7D%E8%BF%90%E8%A1%8C%E5%90%8E%E4%B8%BA%E4%BB%80)
求大神指导简单的java画梯形问题import java.awt.*;public class Poly extends java.applet.Applet{public void paint_bg (Graphics g){int x[]={100,200,250,50,100};int y[]={50,50,200,200,50};int p=x.length;g.drawPolygon(x,y,p);}}运行后为什
求大神指导简单的java画梯形问题
import java.awt.*;
public class Poly extends java.applet.Applet{
public void paint_bg (Graphics g){
int x[]={100,200,250,50,100};
int y[]={50,50,200,200,50};
int p=x.length;
g.drawPolygon(x,y,p);
}
}
运行后为什么只有空白的小窗口,没有画出梯形?
求大神指导简单的java画梯形问题import java.awt.*;public class Poly extends java.applet.Applet{public void paint_bg (Graphics g){int x[]={100,200,250,50,100};int y[]={50,50,200,200,50};int p=x.length;g.drawPolygon(x,y,p);}}运行后为什
public class Poly extends java.applet.Applet{
int x[]={100,200,250,50,100};
int y[]={50,50,200,200,50};
public void paint (Graphics g){ ///////////////
int p=x.length;
g.drawPolygon(x,y,p);
}
}