Question

所以我正在学习Python，我在Pycharm IDE上编写代码。我试图写一个函数，但由于某种原因，Pycharm不会接受'end ='语句，说它没有定义。

这是我的代码

def fib(n):
    a,b=1,0
    while a < n:
        print (a, end=' ')
        a,b=b,b+a

fib(1000)

它给了我以下错误：

line 7
    print (a, end=' ')
                 ^
SyntaxError: invalid syntax

它只在Pycharm上执行此操作。当我在dafult Python IDLE上尝试它时它工作得很好。任何人都可以帮我解决这个问题吗？

Answer 1

正如评论中已经回答的那样，只有python3具有print()的关键字参数：

   quaternion permquat;
   permquat.x = 0;
   permquat.y = 0;
   permquat.z = 0;
   permquat.w = 1;
   quaternion permquat2;
   permquat2.x = 0;
   permquat2.y = 0;
   permquat2.z = 0;
   permquat2.w = 1;

   quaternion local_rotation;
   local_rotation.w  = cosf( beta/(2.0*180.0));
   local_rotation.x = 1.0 * sinf( beta/(2.0*180.0) );
   local_rotation.y = 0.0 * sinf( beta/(2.0*180.0) );
   local_rotation.z = 0.0 * sinf( beta/(2.0*180.0) );

   quaternion local_rotation2;
   local_rotation2.w  = cosf( gamma/(2.0*180.0));
   local_rotation2.x = 0.0 * sinf( gamma/(2.0*180.0));
   local_rotation2.y = 1.0 * sinf( gamma/(2.0*180.0));
   local_rotation2.z = 0.0 * sinf( gamma/(2.0*180.0));

   permquat = mult(local_rotation, permquat);
   normalize(permquat);
   permquat2 = mult(local_rotation2, permquat2);
   normalize(permquat);
   matTransl3D = matrix(permquat);
   glMultMatrixf(*matTransl3D);  

   matTransl3D = matrix(permquat2);
   glMultMatrixf(*matTransl3D);  
   glTranslatef(-9, -9, -9);   // bottom left
   drawcube();
   glPopMatrix();

对于python2，print是一个定义为此的语句，没有关键字参数：

print(*objects, sep=' ', end='\n', file=sys.stdout, flush=False)

您可以切换到python3或禁用该语句，并使用print()功能将此未来行放在模块顶部：
print_stmt ::= "print" ([expression ("," expression)* [","]] | ">>" expression [("," expression)+ [","]])

from __future__ import print_function

Pycharm'end ='语句不起作用？

1 个答案: