Question

我编写了以下脚本，该脚本生成SyntaxError：

#!/usr/bin/python
print "Enter the filename: "
filename = raw_input("> ")
print "Here is your file %r: ", % filename

txt = open(filename)
print txt.read()
txt.close()

这是错误：

  File "ex02.py", line 4
    print "Here is your file %r: ", % filename
                                    ^
SyntaxError: invalid syntax

我该如何解决这个问题？

Answer 1

你不能在那里逗号。

print ("Here is your file %r: " % filename),

Answer 2

不需要昏迷，请尝试：

filename = raw_input("> ")
print "Here is your file %r: " % filename

Answer 3

麻烦在于：

print "Here is your file %r: ", % filename
                              ^

当print找到逗号时，它会将其用作参数分隔符，如下所示：

>>> print 1,2
1 2

在这种情况下，下一个参数必须有效且序列% filename 不是。

你无疑意味着：

print "Here is your file %r: " % filename

根据以下成绩单：

>>> filename = "whatever"

>>> print "file is %r", % filename
  File "<stdin>", line 1
    print "file is %r", % filename
                        ^
SyntaxError: invalid syntax

>>> print "file is %r" % filename
file is 'whatever'

python脚本中的语法错误

3 个答案: