example code update && version code update

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "calculator"
-version = "1.7.2"
+version = "1.7.3"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

examples/syntax/README.md

@@ -2,6 +2,7 @@
 
 - [Variable](./variable.calcrs)
 - [Operator](./operators.calcrs)
+- [Input-Output](./input-output.calcrs)
 - [IF-Condition](./if.calcrs)
 - [Loop](./loop.calcrs)
 - [Function](./function.calcrs)

examples/syntax/input-output.calcrs

@@ -0,0 +1,10 @@
+import Basic
+
+out "test content"
+# 'test content'
+
+out 999999
+# 999999
+
+out input("Please input something here: ") # test content
+# 'test content'

src/exec/repl.rs

@@ -16,7 +16,7 @@ fn import_all(
 
 pub fn repl(scope: &mut Scope) -> ! {
     // print program name and version
-    println!("Calculator.rs v1.7.2");
+    println!("Calculator.rs v1.7.3");
     // import stantard libraries
     if import_all(scope).is_err() {
         println!("Standard module import error.");

src/public/std/modules/basic.rs

@@ -42,9 +42,6 @@ pub fn implement(
             io::stdin()
                 .read_line(&mut input)
                 .unwrap();
-            for ch in input.chars() {
-                println!("char: {}", ch as i8);
-            }
 
             // remove the "\r\n" at the end of input
             if input.ends_with('\n') {