clear"请输入3条变长："input "a=" to ainput "b=" to binput "c=" to cif sjxtest(a,b,c)l=(a+b+c)/2s=sqrt(l*(l-a)*(l-b)*(l-c))"三边可以构成三角形,面积为：s=",selse"三边不可以构成三角形"endiffunction sjxte...