Question

环境： Windows 7的 Python2.7 Eclipse SDK 3.7.2

尝试按照http://www.youtube.com/watch?v=Z-HpXbhVuGo中的教程进行操作我收到一条错误消息：

=============================错误================= ============ Traceback（最近一次调用最后一次）：文件“C：\ eclipse \ plugins \ org.python.pydev_2.7.1.2012100913 \ pysrc \ pydev_runfiles.py”，第432行， get_module_from_str mod = __import （modname）文件“C：\ Users \ lenovo \ workspace \ assignment3 \ fileiotest.py”，第17行打印（bestStudent [i] +'得分'+ i） ^ SyntaxError：语法无效错误：模块：无法导入fileiotest（文件：C：/Users/lenovo/workspace/assignment3/fileiotest.py）。

............................................... ..........................................

#-*- coding: utf8 -*-
from __future__ import print_function


bestStudent = {}
f = open ("C:/Users/lenovo/workspace/assignment3/studentgrades.txt")
for line in f:
    name, grade = line.split()
    bestStudent[grade] = name

f.close()

bestStudentStr= "" 

for i in sorted(bestStudent.keys(), reverse=True):
    print bestStudent[i] + 'scored a ' + i
bestStudentStr += bestStudent[i] + ‘ scored a ‘ + i + ‘\n’

bestStudentStr = ‘\nThe Best Students Ranked\n\n’ + bestStudentStr

print(bestStudentStr)

outToFile = open(‘studentrank.txt’, mode=’w', encoding='utf-8′)
outToFile.write(bestStudentStr)

outToFile.close()

print(‘Finished update’)

Answer 1

突出显示语法错误bestStudent[i]用

替换该打印语句使用（）

print (bestStudent[i] + 'scored a ' + i)

此外，您的代码中包含大量'而非'单个qoutes，您可以直接替换

解决这些问题，我认为它应该有效。

Answer 2

替换了非ascii字符：

from __future__ import print_function

bestStudent = {}
f = open ("C:/Users/lenovo/workspace/assignment3/studentgrades.txt")
for line in f:
    name, grade = line.split()
    bestStudent[grade] = name

f.close()

bestStudentStr= "" 

for i in sorted(bestStudent.keys(), reverse=True):
    print bestStudent[i] + "scored a " + i
bestStudentStr += bestStudent[i] + " scored a " + i + "\n"

bestStudentStr = "\nThe Best Students Ranked\n\n" + bestStudentStr

print(bestStudentStr)

outToFile = open("studentrank.txt", mode="w", encoding="utf-8")
outToFile.write(bestStudentStr)

outToFile.close()

print("Finished update")

当您从pdf，doc etc文件复制源时会发生这种情况。最好的解决方案是在没有unicode支持的文本编辑器中进行复制/粘贴，然后你会看到?标记有什么错误。

SyntaxError：变量名[i]中的语法无效

2 个答案: