In [2]: for c in "Program":
   ...:     print(c,"%")
   ...:
P %
r %
o %
g %
r %
a %
m %

In [3]: for c in "Program":
   ...:     print(c,end=" ")
   ...:
P r o g r a m
In [4]: for c in "Program":
   ...:     print(c,end="")
   ...:
   ...:
Program
In [5]: for c in "Program":
   ...:     print(c,end="%")
   ...:
P%r%o%g%r%a%m%
In [6]: for c in "Program":
   ...:     print(c,"")
   ...:
   ...:
P
r
o
g
r
a
m

In [7]: for c in "Program":
   ...:     print(c,end="^^")
   ...:
P^^r^^o^^g^^r^^a^^m^^

这个部分：

Program
In [5]: for c in "Program":
   ...:     print(c,end="%")
   ...:
P%r%o%g%r%a%m%

加了end,为什么不换行？

谢谢，已经理解。