Learning

BasicSyntax/test1/src/apple.rs

@@ -0,0 +1,21 @@
+use std::io;
+
+fn pr(a:i64){
+    if a > 1 {
+        println!("Today, I ate {} apples.", a)
+    }
+    else if a == 1 || a == 0 {
+        println!("Today, I ate {} apple.", a)
+    }
+}
+
+fn main(){
+    let mut input = String::new();
+    io::stdin()
+        .read_line(&mut input)
+        .expect("");
+
+    let mut a = input.trim().parse::<i64>().expect("");
+    pr(a)
+    
+}

BasicSyntax/test1/src/main.rs

@@ -0,0 +1,27 @@
+use std::io;
+
+fn add(a:i64, b:i64) -> i64 {
+    return a + b ;
+}
+
+fn main(){
+    let mut input = String::new();
+    
+    io::stdin()
+        .read_line(&mut input)
+        .expect("");
+
+     // 用空格拆分字符串
+    let nums: Vec<i64> = input
+        .trim()                         // 去掉换行符
+        .split_whitespace()             // 按空格拆分
+        .map(|s| s.parse::<i64>().expect("请输入有效整数")) // 转换为整数
+        .collect();
+
+    // 假设用户输入了两个整数
+    let a = nums[0];
+    let b = nums[1];
+
+    let c = add(a, b);
+    println!("{}", c);
+}

BasicSyntax/test1/src/two.rs

@@ -0,0 +1,22 @@
+use std::io;
+
+fn add(a : i64, b : i64) -> i64 {
+    return a + b;
+}
+
+fn main(){
+    let mut sa = String::new();
+    let mut sb = String::new();
+    io::stdin()
+        .read_line(&mut sa)
+        .expect("");
+
+    io::stdin()
+        .read_line(&mut sb)
+        .expect("");
+
+    let a: i64 = sa.trim().parse::<i64>().expect("");
+    let b: i64 = sb.trim().parse::<i64>().expect("");
+    let c = add(a, b);
+    println!("{}", c);
+}