10.3.2. rubyist.net网站实例学习¶
字符串:
ruby> "\n"
"\n" # 即换行
ruby> '\n'
"\\n" # 不是换行
ruby> "abcd #{5*3} efg"
"abcd 15 efg"
ruby> var = " abc "
" abc "
ruby> "1234#{var}5678"
"1234 abc 5678"
ruby> "foo" + "bar"
"foobar"
ruby> "foo" * 2
"foofoo"
puts "Hello #{name}!" #字符串中设置变量