python_day2
# str1 = "duoceshi"# print(str1)
# print(str1)
# # print(str1)
# print(str1)
# print(str1[-4])
# print(str1[-8])
# print(str1[-9])# IndexError: string index out of range
# str1 = "duoceshi"
# # print(str1)
# # print(str1[:6])
# # print(str1)
# # print(str1[-2:])
# # print(str1)
# print(str1)
# print(str1[:])
# print(str1[-6:-2])
# str1 = "duoceshi"
# print(str1)
# print(str1)
# print(str1[:4:-1])
# print(str1)
# print(str1[::-1])
# print(str1[-2:-6:-1])
# print(str1)
# str1 = "xiao ming"
# print(str1.capitalize())
#
# str2 = str1.title()
# print(str2)
#
# print(str1.count("x"))
#
# print("_".join(str1))
#
# list1 = str1.split(" ")
# print(list1)
# print(list1)
#
# str2 = "user_name"
# list2 = str2.split("_")
# print(list2)
# print("".join(list2))
# str1 = "Ddcfsdcfn"
# print(str1.strip("d"))
# print(str1.lstrip("d"))
#
# print(str1.rstrip("d"))
#
# print(str1.startswith("d"))
#
# print(str1.endswith("c"))
#
# print(str1.find("c"))
# # print(str1.find("d",6))
#
# print(str1.rfind("f" [-2:-3]))
# str1 = "xiaozahang"
# print(str1.rfind( "a",0,3))
# print(str1.replace("d","e"))
# print(str1.lower())
#
# print(str1.upper())
#
# print(str1.isdigit())
# print(str1.isalpha())
#
# print(str1.isalnum())
#
# print(str1.istitle())
# print(str1.isupper())
# print(str1.islower())
# str1 ="xian05"
# list1 = list(str1)
# print(list1)
# print(type(list1))
# str2 = str(list1)
# print(str2)
# print(type(str2))
list3 = ["11", "22", "dec"]
# list3 = "55"
# print(list3)
#
# list3.append("88")
# print(list3)
# print(list3.index("11"))
# list3.remove("11")
# print(list3)
# del list3
# print(list3)
# list3.sort()
# print(list3)
list4 = sorted(list3)
print(list4)
list3.reverse()
print(list3)
页:
[1]