变量替换的两种方式 Wednesday, July 1, 2015 6:39 AM

hi=’yaung’ ih=’zhou’

print “this is {0}”.format(hi)

this is yaung

print ‘this is %s’ % (hi)

this is yaung

print ‘this is {1} {0}’.format(hi,ih)

this is zhou yaung

print ‘this is %s %s’ % (ih,hi)

this is zhou yaung

可以看出两种方法：

  1. {n}”.format(xx) 2.%s” % (xx)

如果字符串里面本来就有%字符串，需要对%做转义，这里不能用\转义，而是用%

print ‘i have 100% %s name’ % ‘english’ Traceback (most recent call last): File “ < stdin>”, line 1, in < module> TypeError: not all arguments converted during string formatting print ‘i have 100%% %s name’ % ‘english’ i have 100% english name 或者用fomat格式避免 print ‘i have 100% {0} name’.format(‘english’) i have 100% english name

已使用 Microsoft OneNote 2016 创建。