#!/usr/bin/env python # -*- coding:utf-8 -*-# 百分號(hào)格式化 # %[(name)[flags][width].[precision]]typecode # name : 指定占位符的key # flags : + - 空格 0 # width : 寬度 # precision : 小數(shù)點(diǎn)后保留的位數(shù) # typecode : 必需,數(shù)據(jù)類(lèi)型 # 字符串里面有%的時(shí)候, %%表示一個(gè) %字符串 s = "i am %s,age %d" % ("guolei", 18) print(s)s = "i am %(n1)+10s,age %(n2)+10d" % {"n1": "alex", "n2": 18} print(s)s = "i am %.2f sdfsd" % 1.2 print(s)# Format格式化 # [[fill]align][sign][#][0][width][,][.precision][type] # fill 空白處填充的字符 # align 對(duì)齊方式 < > = ^ # sign 有無(wú)符號(hào)數(shù)字 +:正號(hào)加正，負(fù)號(hào)加負(fù)，-:正號(hào)不變，負(fù)號(hào)加負(fù)，空格：正號(hào)空格，負(fù)號(hào)加負(fù) # 對(duì)于2，8，16進(jìn)制，如果加上#，會(huì)顯示 0b/0o/0x，否則不顯示 # , 為數(shù)字添加分隔符，1,000,000 # width 寬度 # .precision 小數(shù)保留精度 # type 格式化類(lèi)型 s = "i am {:.2%}asdf".format(12) print(s)s = "i am {},age {},{}".format("alex", 18, "guolei") s = "i am {},age {},{}".format(*["alex", 18, "guolei"]) s = "i am {0},age {1},{0}".format(*["alex", 18]) s = "i am {name},age {age},{name}".format(name="alex", age=18) s = "i am {name},age {age},{name}".format(**{"name": "alex", "age": 18}) s = "i am {0[0]},age {0[1]},{0[2]}".format([1, 2, 3], [4, 5, 6]) s = "i am {:s},age {:d},{:f}".format("alex", 18, 2.222) s = "i am {name:s},age {age:d},{num:f}".format(name="alex", age=18, num=1.22) s = "i am {name:s},age {age:d},{num:f}".format(**{"name": "alex", "age": 18, "num": 1.22}) s = "i am {:#b},age {:o},{:x}".format(10, 10, 18) print(s) s = "i am {0[0]},age {0[1]}".format(["alex", 18]) print(s)

?

轉(zhuǎn)載于:https://www.cnblogs.com/xiaojiulin/p/10571745.html

總結(jié)

以上是生活随笔為你收集整理的Python学习_字符串格式化的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺(jué)得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。