Eval function record

Source: Internet
Author: User

Today, a small program wants to call the corresponding function in the function name list, but it cannot run. The initial code is as follows:

# Coding: utf8def H1 (): Print 'function 1' def H2 (): Print 'function 2' if _ name _ = '_ main __': list1 = ['h1 ', 'h2'] For name in list1: Name ()

In fact, this program seems a bit wrong. After checking it, we should add the eval () function to the final name.

For name in list1: eval (name )()

In this way, the function is called normally. Summary:

The eval (STR [, globals [, locals]) function evaluates the string 'str' as a valid Python expression and returns the calculation result.

If eval ('1 + 2') returns 3

This is easy to understand.

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