#break:终止程序,跳出循环
#next:跳到下一个循环,本次循环结果不做处理
#redo:在相同的条件下重复刚才的处理
i = 0
names = ["Perl","Pyhton","Ruby","Scheme"]
names.each do |x|
i += 1
if i == 3
break
end
p [i,x]
end
i = 0
names = ["Perl","Pyhton","Ruby","Scheme"]
names.each do |x|
i += 1
if i == 3
next
end
p [i,x]
end
i = 0
names = ["Perl","Pyhton","Ruby","Scheme"]
names.each do |x|
i += 1
if i == 3
redo
end
p [i,x]
end