x1,y1 = 1.2,3.57 x2,y2 = 2.26,8.7 print(‘{:-^40}‘.format(‘输出1‘)) print(‘x1={},y1={}‘.format(x1,y1)) print(‘x2={},y2={}‘.format(x2,y2)) print(‘{:-^40}‘.format(‘输出2‘)) print(‘x1={:.1f},y1={:.1f}‘.format(x1,y1)) print(‘x2={:.1f},y2={:.1f}‘.format(x2,y2)) print(‘{:-^40}‘.format(‘输出3‘)) print(‘x1={:<15},y1={:<15}‘.format(x1,y1)) print(‘x2={:<15},y2={:<15}‘.format(x2,y2))
{:-^40}控制输出数据格式: 宽度占40列,居中对齐,空白处用 - 补齐
{:<15}控制数据输出宽度占15 列,左对齐,空白处默认补空格;同理{:>15}对应右对齐
{:.1f}控制小数输出精度,保留 1位小数
s=input(‘请输入一个字符串:‘) m=s.upper() print(m.replace(‘A‘,‘‘))
name_list=[‘david bowie‘,‘louis armstrong‘,‘leonard cohen‘,‘bob dylan‘,‘coceau twins‘] n=1 for name in name_list: print(f‘{n}:{name.title()}‘) n+=1
name_list=[‘david bowie‘,‘louis armstrong‘,‘leonard cohen‘,‘bob dylan‘,‘coceau twins‘] name_list.sort() n=1 for name in name_list: print(f‘{n}.{name.title()}‘) n+=1
text=‘‘‘ The Zen of Python, by Tim Peters Beautiful is better than ugly. Explicit is better than implicit. Simple is better than complex. Complex is better than complicated. Flat is better than nested. Sparse is better than dense. Readability counts. Special cases aren‘t special enough to break the rules. Although practicality beats purity. Errors should never pass silently. Unless explicitly silenced. In the face of ambiguity, refuse the temptation to guess. There should be one-- and preferably only one --obvious way to do it. Although that way may not be obvious at first unless you‘re Dutch. Now is better than never. Although never is often better than *right* now. If the implementation is hard to explain, it‘s a bad idea. If the implementation is easy to explain, it may be a good idea. Namespaces are one honking great idea -- let‘s do more of those! ‘‘‘ print(len(text)) print(len(text.split())) print(len(text.splitlines())) print(text.count(‘‘))
x=[] i=1 while i <=3: n=input(‘请输入想要加入愿望清单的事情:‘) x.append(n) i+=1 print(‘{:-^50}‘.format(‘我的愿望清单‘)) m=1 for h in x: print(f‘{m}.{h.title()}‘) m+=1
1.format
2.upper append
3.实验6是所有操作中耗时最久的一个,错误运行结果如下
对于for in 用法尚不熟悉 需加强
原文:https://www.cnblogs.com/qiaobiebie/p/14619118.html