Add error and exceptions

Author: hermite2053

errors_and_exceptions/handling_exceptions/main.py

@@ -0,0 +1,8 @@
+while True:
+    try:
+        a = int(input('key in any integer>> '))
+        break
+    except ValueError:
+        print('\x1b[31mInvalid number!\x1b[0m')
+
+print(f'number: {a}')

errors_and_exceptions/raising_exceptions/main.py

@@ -0,0 +1 @@
+raise ValueError