Python 3 x下消除print 自動換行

python 2.x下的print語句在輸出字串之後會預設換行，如果不希望換行，只要在語句最後加乙個「，」即可。但是在python 3.x下，print()變成內建函式，加「，」的老方法就行不通了。

查詢python的library reference>built-in functions，找到如下條目：

「print

([object, ...

], *, sep=' ', end='\n', file=sys.stdout

)print object(s) to the stream file, separated by sep and followed by end. sep, endand file, if present, must be given as keyword arguments.

all non-keyword arguments are converted to strings like str()

does and written to the stream, separated by sep and followed by end. both sep and end must be strings; they can also be none

, which means to use the default values. if no objectis given, print()

will just write end.

the file argument must be an object with a write(string)

method; if it is not present or none

, sys.stdout

will be used. 」

其中，sep=''和end='\n'均是print()的關鍵引數，sep的預設值為空，end預設值為換行符，這就是print()在輸出後預設換行的原因。相應的，解決辦法就是對end賦值：print(something, something,.., end='')，使end值為空，這個換行就消除了。