在 Erlang 字符串中添加 ~（代字号）

Question

我想在字符串中添加 ~（代字号）并将此字符串写入文件。

例如。

String = "~Hi~Welcome ~Presenting ~My~Problem~To~you Public ~L.",
ile:write_file(WriteFileName, io_lib:fwrite(String,[])).

收到错误

** Reason for termination == 
** {badarg,[{io_lib,format,
                    ["~Hi~Welcome ~Presenting ~My~Problem~To~you Public ~L.",
                     []],
                    [{file,"io_lib.erl"},{line,168}]},.....]}

感谢任何帮助！谢谢:)

Answer 1

使用其中两个：

1> io:format("~~~s~~~s~~~n", ["Hello", "World"]).
~Hello~World~
ok

来自 io:fwrite/1 文档：

Available control sequences:

~

Character ~ is written.

Answer 2

您不需要在那里拨打 io_lib:fwrite；您可以直接将字符串传递给 file:write_file：

String = "~Hi~Welcome ~Presenting ~My~Problem~To~you Public ~L.",
file:write_file(WriteFileName, String).

在 Erlang 字符串中添加 ~（代字号）

Add ~ (tilde) in an Erlang string

erlang

text

file-writing