情人节到了,怎么表白? 几个小例子告诉你, 一行Python代码能干哪些事
import time words = input('Please input the words you want to say!:') for item in words.split(): print('\n'.join([''.join([(item[(x-y) % len(item)] if ((x*0.05)**2+(y*0.1)**2-1)**3-(x*0.05)**2*(y*0.1)**3 <= 0 else ' ') for x in range(-30, 30)]) for y in range(12, -12, -1)])) time.sleep(1.5)
更新:鉴于不少盆友评论,我也细想了一下这段代码逻辑,其实说难也不难,有几点:
1.爱心图形和圆形、椭圆…..类似,都是由一系列的点(X,Y)构成的曲线,X,Y又满足一定的关系,这样可以确定出一个表达式expression,然后就是两个for循环(for y in range;for x in range)逐行逐列地开始打印,满足条件expression的打印出字符,否则打印空格符。
2.python语法:.split();.join();** 比较简单可以自行百度下~
最后,拆解了一下这段长串的【一行代码】,得到如下的多行代码,实际运行效果一致,代码如下:
import time words = input('Please input the words you want to say!:') #例子:words = "Dear lili, Happy Valentine's Day! Lyon Will Always Love You Till The End! ♥ Forever! ♥" for item in words.split(): #要想实现打印出字符间的空格效果,此处添加:item = item+' ' letterlist = []#letterlist是所有打印字符的总list,里面包含y条子列表list_X for y in range(12, -12, -1): list_X = []#list_X是X轴上的打印字符列表,里面装着一个String类的letters letters = ''#letters即为list_X内的字符串,实际是本行要打印的所有字符 for x in range(-30, 30):#*是乘法,**是幂次方 expression = ((x*0.05)**2+(y*0.1)**2-1)**3-(x*0.05)**2*(y*0.1)**3 if expression <= 0: letters += item[(x-y) % len(item)] else: letters += ' ' list_X.append(letters) letterlist += list_X print('\n'.join(letterlist)) time.sleep(1.5);