用matlab读入文件，打印点
fdata = fopen('E:\iis\ftp&share\nodeList.txt','r');A = fscanf(fdata,'%g',)%放到一个二维数组figuretext(A(1,1),A(2,1),'sink')hold on%需要hold on,否则画新的内容时候，旧的会被刷掉plot(A(1,1),A(2,1),'o')%下表从1开始，而不是从零开始hold onfor index=2:100 t = num2str(index) %将数字转换成字符串 x = A(1,index) y = A(2,index) text(x,y,t) plot(x,y,'rx') hold onendfclose(fdata)
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