python并行迭代
并行迭代：同时并行遍历两个列表
for line1,line2 in zip(line1_list, line2_list):
...
无聊，贴一段刚才的代码：
1 import sys 2 import string 3 4 expected="" 5 result="" 6 7 if sys.argv[1] == '--help': 8 print 'example: --expected=expected --result=result' 9 if len(sys.argv) < 3: 10 print 'please provide correct file path' 11 sys.exit() 12 13 index = 1 14 while index < 3: 15 if sys.argv[index].startswith('--expected'): 16 expected = sys.argv[index][11:] 17 elif sys.argv[index].startswith('--result'): 18 result = sys.argv[index][9:] 19 index += 1 20 21 expected_input = open(expected, 'r') 22 result_input = open(result, 'r') 23 expected_lines = expected_input.readlines() 24 result_lines = result_input.readlines() 25 expected_input.close() 26 result_input.close() 27 28 correct = 0 29 wrong = 0 30 31 if len(expected_lines) != len(result_lines): 32 print "line counts are not consistent" 33 else: 34 for exp, res in zip(expected_lines, result_lines): 35 if exp == res: 36 correct += 1 37 else: 38 wrong += 1 39 40 accuracy = float(correct) / (correct + wrong) 41 print "All: " + str(correct + wrong) + " Correct: " + str(correct); 42 print "Accuracy = " + str(accuracy)
