初始化工程

Protobuf/ProtobufCompiler/readme.txt

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+Protocol Buffers - Google's data interchange format
+Copyright 2008 Google Inc.
+https://developers.google.com/protocol-buffers/
+This package contains a precompiled binary version of the protocol buffer
+compiler (protoc). This binary is intended for users who want to use Protocol
+Buffers in languages other than C++ but do not want to compile protoc
+themselves. To install, simply place this binary somewhere in your PATH.
+If you intend to use the included well known types then don't forget to
+copy the contents of the 'include' directory somewhere as well, for example
+into '/usr/local/include/'.
+Please refer to our official github site for more installation instructions:
+  https://github.com/protocolbuffers/protobuf