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修改程序
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src/upgrade_demo_app.erl

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -3,7 +3,7 @@
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-behaviour(application).
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%% Application callbacks
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-export([start/2, stop/1]).
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-export([start/2, stop/1, hello/0]).
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%% ===================================================================
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%% Application callbacks
@@ -14,3 +14,6 @@ start(_StartType, _StartArgs) ->
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stop(_State) ->
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ok.
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hello() ->
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1.

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