FilesExpand file tree

 master

/

test_eval.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

40 lines (32 loc) · 1004 Bytes

 master

/

test_eval.py

Copy path

Top

File metadata and controls

• Code
• Blame

40 lines (32 loc) · 1004 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

# -*- coding: utf-8 -*-

# eval

def main():

dictString = "{'Define1':[[63.3,0.00,0.5,0.3,0.0],[269.3,0.034,1.0,1.0,0.5]," \

"[332.2,0.933,0.2,0.99920654296875,1],[935.0,0.990,0.2,0.1,1.0]]," \

"'Define2':[[63.3,0.00,0.5,0.2,1.0],[269.3,0.034,1.0,0.3,0.5]," \

"[332.2,0.933,0.2, 0.4,0.6],[935.0,0.990,1.0, 0.5,0.0]],}"

dict = eval(dictString)

print("keys: ", dict.keys())

print("Define1 value ", dict['Define1'])

# execfile

#execfile("test_list.py")

main()

# eval(expression[, globals[, locals]])

# 如果忽略后面两个参数，则eval在当前作用域执行。

a = 1

b = eval("a + 1")

print(b)

# 如果指定globals参数

a = 1

g = {'a': 10}

b= eval("a + 1", g)

print(b)

# 如果指定locals参数

a = 10

b = 20

c = 20

g = {'a': 6, 'b': 8}

l = {'b': 9, 'c': 10}

d = eval("a+b+c", g, l)

print(d)

# 如果要严格限制eval执行，可以设置globals为__builtins__,这样 这个表达式只可以访问__builtin__ module。