摘要： irb(main):001:0> puts "a", "\nb" a b => nil irb(main):002:0> p "a", "\nb" "a" "\nb" => nil irb(main):003:0> print "a", "\nb" a b=> nil puts会识别双引号""内... 阅读全文

摘要： window.onload = function(){ var input = document.getElementById("demo_input"); var result= document.getElementById("result"); var img_area = document.... 阅读全文