Question

如果我在变量中有文字说

Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old

如何将最后一行放在下一行？

Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old

Answer 1

如果要显示要在下一行显示的段落的最后一行，可以使用\n。喜欢

"Lorem Ipsum is not simply random text. \nIt has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old"

Answer 2

使用rpartition分隔最后一句。

string = "Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old"

start, middle, finish = string.rpartition('. ')

answer = middle == '. ' ? [start, finish].join(".\n") : finish

puts answer
=> Lorem Ipsum is not simply random text.
It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old

三元组的原因是处理没有找到句子的情况（＆＃34;。＆＃34;），在这种情况下整个字符串将在finish变量中。

Answer 3

如果您希望它可以使用任意数量的段落，只需为最后一段创建一个新行，您可以使用：

to_fix_1 = "Somewhere above. The cityscape. Gerwefegrrfqegrwb.".split('.')
to_fix_2 = "Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old".split('.')

converter = lambda { |splitted, res| splitted.each_with_index { |p,i| (i+1) == splitted.length && splitted.length != 1 ? (res += "\n"+p.strip+'.') : (res += p+'.') } and return res }

result = converter.call(to_fix_1, '')
puts result

=> Somewhere above. The cityscape.
Gerwefegrrfqegrwb.

result = converter.call(to_fix_2, '')
puts result

=> Lorem Ipsum is not simply random text.
It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old.

（我只是很开心写作，不要判断）

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