examples/primitives/primitives.rs: Translate
examples/primitives/primitives.rs: Translate

rust-lang-cn/rust-by-example-cn,aakloxu/rust-by-example-cn,aakloxu/rust-by-example-cn,jinyuanxie/rust-by-example-cn,jinyuanxie/rust-by-example-cn,rust-lang-cn/rust-by-example-cn