From 3b805ff8a4ebbe4c1d2f0dba57d7dfd8696d06ce Mon Sep 17 00:00:00 2001
From: sunface <cto@188.com>
Date: Tue, 1 Mar 2022 21:40:29 +0800
Subject: [PATCH] add solutions dir

---
 assets/temp.md                      | 87 +++++++++++++++++++++++++++++
 solutions/basic-types/char-bool.md  |  0
 solutions/basic-types/functions.md  |  0
 solutions/basic-types/numbers.md    |  0
 solutions/basic-types/statements.md |  0
 solutions/compound-types/array.md   |  0
 solutions/compound-types/enum.md    |  0
 solutions/compound-types/slice.md   |  0
 solutions/compound-types/string.md  |  0
 solutions/compound-types/struct.md  |  0
 solutions/compound-types/tuple.md   |  0
 solutions/flow-control.md           |  0
 solutions/ownership/borrowing.md    |  0
 solutions/ownership/ownership.md    |  0
 solutions/pattern-match/match.md    |  0
 solutions/pattern-match/patterns.md |  0
 solutions/variables.md              |  0
 17 files changed, 87 insertions(+)
 create mode 100644 assets/temp.md
 create mode 100644 solutions/basic-types/char-bool.md
 create mode 100644 solutions/basic-types/functions.md
 create mode 100644 solutions/basic-types/numbers.md
 create mode 100644 solutions/basic-types/statements.md
 create mode 100644 solutions/compound-types/array.md
 create mode 100644 solutions/compound-types/enum.md
 create mode 100644 solutions/compound-types/slice.md
 create mode 100644 solutions/compound-types/string.md
 create mode 100644 solutions/compound-types/struct.md
 create mode 100644 solutions/compound-types/tuple.md
 create mode 100644 solutions/flow-control.md
 create mode 100644 solutions/ownership/borrowing.md
 create mode 100644 solutions/ownership/ownership.md
 create mode 100644 solutions/pattern-match/match.md
 create mode 100644 solutions/pattern-match/patterns.md
 create mode 100644 solutions/variables.md

diff --git a/assets/temp.md b/assets/temp.md
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index 0000000..090250f
--- /dev/null
+++ b/assets/temp.md
@@ -0,0 +1,87 @@
+# 字符、布尔、单元类型
+
+### 字符
+🌟
+```rust
+
+use std::mem::size_of_val;
+fn main() {
+    let c1 = 'a';
+    assert_eq!(size_of_val(&c1),1); 
+
+    let c2 = '中';
+    assert_eq!(size_of_val(&c2),3); 
+} 
+```
+
+🌟
+```rust
+
+fn main() {
+    let c1 = "中";
+    print_char(c1);
+} 
+
+fn print_char(c : char) {
+    println!("{}", c);
+}
+```
+
+### 布尔
+🌟
+```rust
+
+// 让  println! 工作
+fn main() {
+    let _f: bool = false;
+
+    let t = true;
+    if !t {
+        println!("hello, world");
+    }
+} 
+```
+
+🌟
+```rust
+
+fn main() {
+    let f = true;
+    let t = true && false;
+    assert_eq!(t, f);
+}
+```
+
+
+### 单元类型
+🌟🌟
+```rust
+
+// 让代码工作，但不要修改 `implicitly_ret_unit` !
+fn main() {
+    let _v: () = ();
+
+    let v = (2, 3);
+    assert_eq!(v, implicitly_ret_unit())
+}
+
+fn implicitly_ret_unit() {
+    println!("I will returen a ()")
+}
+
+// 不要使用下面的函数，它只用于演示！
+fn explicitly_ret_unit() -> () {
+    println!("I will returen a ()")
+}
+```
+
+🌟🌟 单元类型占用的内存大小是多少？
+```rust
+
+// 让代码工作：修改 `assert!` 中的 `4` 
+use std::mem::size_of_val;
+fn main() {
+    let unit: () = ();
+    assert!(size_of_val(&unit) == 4);
+}
+```
\ No newline at end of file
diff --git a/solutions/basic-types/char-bool.md b/solutions/basic-types/char-bool.md
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diff --git a/solutions/basic-types/functions.md b/solutions/basic-types/functions.md
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diff --git a/solutions/basic-types/numbers.md b/solutions/basic-types/numbers.md
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diff --git a/solutions/basic-types/statements.md b/solutions/basic-types/statements.md
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diff --git a/solutions/compound-types/array.md b/solutions/compound-types/array.md
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diff --git a/solutions/compound-types/enum.md b/solutions/compound-types/enum.md
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diff --git a/solutions/compound-types/slice.md b/solutions/compound-types/slice.md
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diff --git a/solutions/compound-types/string.md b/solutions/compound-types/string.md
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diff --git a/solutions/compound-types/struct.md b/solutions/compound-types/struct.md
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diff --git a/solutions/compound-types/tuple.md b/solutions/compound-types/tuple.md
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diff --git a/solutions/flow-control.md b/solutions/flow-control.md
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diff --git a/solutions/ownership/borrowing.md b/solutions/ownership/borrowing.md
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diff --git a/solutions/ownership/ownership.md b/solutions/ownership/ownership.md
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diff --git a/solutions/pattern-match/match.md b/solutions/pattern-match/match.md
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diff --git a/solutions/pattern-match/patterns.md b/solutions/pattern-match/patterns.md
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diff --git a/solutions/variables.md b/solutions/variables.md
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