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function phaseplot(varargin)
type=varargin{end};
switch type
    case'2'
        t=varargin{1};%ζÈ
        y_1=varargin{2};%ÒºÏàÏß
        y_g=varargin{3};%ÆøÏàÏß
        y2i=linspace(0,1);ti=spline(y_1,t,y2i);plot(y_1,t,'o',y2i,ti);
        hold on
        y1i=linspace(0,1);t1i=spline(y_g,t,y2i);plot(y_g,t,'o',y1i,t1i);
        prompt={'ÎïÖÊ1µÄÃû³Æ','ÎïÖÊ2µÄÃû³Æ'};
        answer=inputdlg(prompt,'ÇëÊäÈëÎïÖÊÃû³Æ',1);
        text('position',[0 min(t)],'string',[answer{1},'(A)']);
        text('position',[0.86 min(t)],'string',[answer{2},'(A)']);
        xlabel('x_A');ylabel('tC');title('¶þÔªÏàͼ');
        text(0.5,tli(50)+5,'ÆøÏà');text(0.8,min(ti)+1,'ÒºÏà');
    case'3'
        y1=varargin{1};y2=varargin{2};y3=varargin{3};
        c=0:0.1:0.5;b=c.*tan(pi/3);plot(c,b);axis([0 1 0 1]);
        axis(axis);hold on;c=0.5:0.1:1;a=(1-c).*tan(pi/3);plot(c,a);
        y=y1.*sin(pi/3);a1=(1-(y2+y3))./2;x=y2+a1;plot(x,y,'o',x,y);
        prompt={'ÎïÖÊ1µÄÃû³Æ','ÎïÖÊ2µÄÃû³Æ','ÎïÖÊ3µÄÃû³Æ'};
        answer=inputdlg(prompt,'ÇëÊäÈëÎïÖÊÃû³Æ',1);
        prompt1={[answer{2},'ÔÚ',answer{3},'Èܽâ¶È'],[answer{3},'ÔÚ',...
        answer{2},'Èܽâ¶È']};
        answer1=inputdlg(prompt1,'ÇëÊäÈëÈܽâ¶È',1);
        x1=[str2num(answer1{2}) x str2num(answer1{1})];y1=[0 y 0];
        plot(x1,y1,'o',x1,y1);text('pos',[0.5 0.9],'str',[answer{1},'(A)']);
        text('pos',[0.01,0.05],'str',[answer{3},'(B)']);
        text('pos',[0.96,0.05],'str',[answer{2},'(C)']);
        text(0.75,0.5,'A%');text(0.20,0.5,'B%');text(0.5,0.04,'C%');
        title('ÈýÔªÏàͼ');
end