model new[]fish define abcabc = hh * 3 + 5end[][][][][][]
model newzone create brick size 10 3 5fish define place_cables(num,segs)loop local n (1,num)local z_d = n - 0.5commandstructure cable create by-line 0.0 1.5 [z_d] 7.0 1.5 [z_d] segments [segs]endcommandendloopend[place_cables(5,7)]
[][ad2 = gp.near(1,2,0)][ad3 = gp.near(0,2,1)][ad4 = gp.near(1,2,1)]fish define load load = gp.force.unbal(ad1)->y + gp.force.unbal(ad2)->y + gp.force.unbal(ad3)->y + gp.force.unbal(ad4)->yendfish history loadmodel newfish define xxxsum = 0prod = 1loop n (1,10)sum += nprod *= nendloopio.out('The sum is ' + string(sum) + ' and the product is ' + string(prod))end[]
里面:+=和*= ,他们分别是连加,连乘。
其实python里面也是类似的,这个比以前的要方便很多
以前是这样写的:
model newfish define xxxsum = 0prod = 1loop n (1,10)sum = sum + nprod = prod * nend_loopio.out('The sum is ' + string(sum) + ...' and the product is ' + string(prod))end@xxx
fish define loadload = list.sum(gp.force.unbal(::ad)->y)end
[ zone.stress(::zone.list)->xx += 500 ]