打開Processing,Ctrl+R運行.

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運行效果 :?

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class myRect {float x,y;float r,a;//banjing secai bianhua myRect(float x, float y, float r,float a) {this.x = x;this.y = y;this.r = r;this.a = a;}void chang(){this.a += 0.02;} void display() {stroke(255);fill(120-120*cos(a), 20 + 20 * tan(a), 255 + 255*sin(a));circle(x,y,r);}void display2() {stroke(255);fill(127+127*sin(a));circle(x,y,r);}}myRect [][]d; int n=10,m=10;void setup() {size(240, 240);d = new myRect[n][m];for(int i = 0; i<n; i++) {for(int j = 0; j<m; j++) {d[i][j] = new myRect((i+1)*20,(j+1)*20,20,(i+1)+(j+1));}} } int value=0,aa=0,bb=0; void mouseClicked() {if(value == 0) {value = 1;}else {value=0;} } void draw() {background(0);for(int i = aa; i<n; i++) {for(int j = bb; j<m; j++) {d[i][j].chang();if(value == 1)d[i][j].display();else d[i][j].display2();}} }

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