我正在从“forward_vs_node.dat”文件加载数据，其中数据如下：
70 0.8298
80 0.8614
90 0.8858
100 0.9048
110 0.9199
120 0.9318
130 0.9414
140 0.9493
150 0.9557
160 0.9610
170 0.9654
180 0.9692
190 0.9723
200 0.9750
我正在使用我写的.plt文件：
set term pdfcairo enhanced font "Times-New-Roman,10"
set output "node_vs_reachability.pdf"
unset label
set xlabel "Nodes in the network" font "Times-New-Roman,10"
set ylabel "Reachability" font "Times-New-Roman,10"
set x2label "Nodes vs Reachability" font "Times-New-Roman,10"
set logscale y
set xrange [70:200]
set yrange [0.7:1.0]
set xtics nomirror (70,80,90,100,110,120,130,140,150,160,170,180,190,200)
font "Times-New-Roman,10"
set ytics nomirror (0.7,0.8,0.9,1.0) font "Times-New-Roman,10"
set size 1,1
set style line 1 lt 1 lw 2 pt 3 ps 0.5
set style line 2 lt 2 lw 1 pt 2
set style line 3 lt 3 lw 1 pt 3
set style line 4 lt 4 lw 1 pt 4
set style line 5 lt 5 lw 1 pt 6
set style line 6 lt 6 lw 1 pt 8
plot "forward_vs_node.dat" using 1:2 title 'Analytical Result' with `linespoints lt 1 lw 2 pt 3 ps 0.5
显示的是点，但没有可见的线条。请帮忙......