字符串处理

字符串基础(String Basics)
http://schemecookbook.org/Erlang/StringBasics

字符转义用法:
1> A_string = "A literal string with a linebreak (\"\\n\")in it".
"A literal string with a linebreak (\"\\n\")in it"
2> A_string.
"A literal string with a linebreak (\"\\n\")in it"
3> io:fwrite(A_string).
A literal string with a linebreak ("\n")in itok

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