标签:span isa div size mat make cap form 标识符
name = "qjh" print(name.capitalize())#将首字母大写输出 //Qjh #print(name.count("q") //qjh #print(name.center(50,"-"))# //-1 #print(name.endswith("s"))#以什么结尾 print(name.expandtabs(tabsize=30))# print(name.find("d")) print(name.format(name=‘qjhqqffd‘)) print(‘ad21‘.isalnum()) print(‘ad‘.isalpha()) print(‘1A‘.isdecimal()) print(‘1a‘.isdigit()) print((‘1A‘.isidentifier()))#判断是否是合法的标识符 print(‘33.33‘.isnumeric()) print(‘my name is ‘.istitle()) print(‘my name is ‘.isprintable()) print(‘my name is ‘.isupper()) print(‘+‘.join([‘1‘,‘2‘,‘3‘])) print(name.ljust(50,‘*‘)) print(name.rjust(50,‘-‘)) print(‘Qjh‘.lower()) //qjh print(‘qjh‘.upper()) //QJH #print(‘qjh\n‘.lstrip()) #print(‘\nqjh‘.lstrip()) #print(‘ qjh\n‘.strip()) print(‘---‘.lstrip()) //--- p = str.maketrans("qdsjdsh",‘1234567‘) print("qjhs".translate(p)) //1476 print(‘qjjh‘.replace(‘j‘,‘J‘)) //qJJh print(‘qj h‘.rfind(‘h‘)) //3 print(‘q+j+h+d+s+a‘.split(‘s‘)) //[‘q+j+h+d+‘, ‘+a‘]
name.capitalize() 首字母大写 name.casefold() 大写全部变小写 name.center(50,"-") 输出 ‘---------------------Alex Li----------------------‘ name.count(‘lex‘) 统计 lex出现次数 name.encode() 将字符串编码成bytes格式 name.endswith("Li") 判断字符串是否以 Li结尾 "Alex\tLi".expandtabs(10) 输出‘Alex Li‘, 将\t转换成多长的空格 name.find(‘A‘) 查找A,找到返回其索引, 找不到返回-1
标签:span isa div size mat make cap form 标识符
原文地址:https://www.cnblogs.com/qjhh/p/12398271.html