考虑使用此Python代码来打印逗号分隔值列表
for element in list: print element + ",",
如果element列表中的最后一个元素是不显示逗号的首选打印方法。
element
前
a = [1, 2, 3] for element in a print str(element) +",", output 1,2,3, desired 1,2,3
>>> ','.join(map(str,a)) '1,2,3'