Python Learning note 011--built-in function exec ()

1 description

To execute a string as a statement

exec () executes python statements stored in a string or file, and exec () can execute more complex Python code than eval () .

2 syntax

exec(object[, globals[, locals])

Object: A required parameter that represents the python code that needs to be specified. It must be a string or a code object. If object is a string, the string is first parsed into a set of Python statements and then executed (unless a syntax error occurs). If object is a code object, it is simply executed.

Globals: An optional parameter that represents the global namespace (which holds the global variable) and, if provided, a Dictionary object.

Locals: An optional parameter that represents the current local namespace (which holds local variables) and, if provided, can be any mapping object. If the parameter is ignored, then it will take the same value as globals.

Python Learning note 011--built-in function exec ()