update .gitignore

Signed-off-by: Jia Chao <jiac13@chinaunicom.cn>

.gitignore

@@ -1 +1,25 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+
+# Added by cargo
+
 /target
+
+# clion
+.idea/*
+
+# ignore swp
+**/*.swp