list
鈥� 瀛楃涓叉搷浣�
鈥� 瀛楀吀鎿嶄綔
鈥� list鎿嶄綔
瀛楃涓叉搷浣�
my_str = "j2hdjA mK"
# 杞崲鎴愬ぇ鍐�
res = my_str.upper()
print(res)
# 杞皬鍐�
res1 = my_str.lower()
print(res1)
# 灏嗗瓧绗︿覆棣栧瓧姣嶅ぇ鍐�
res3 = my_str.capitalize()
print(res3)
# 灏嗗瓧绗︿覆姣忎釜鍗曡瘝棣栧瓧姣嶅ぇ鍐�
res4 = my_str.title()
print(res4)
# 瀛楃涓茬殑鍒囧垎 2瀵瑰簲鐨勫弬鏁颁綅缃� 琛ㄧず鐨勬槸鍒囧垎鍑犳
res5 = my_str.split(" ", 2)
print(res5)
# 鍘绘帀瀛楃涓插乏渚ф寚瀹氱鍙�
res9 = my_str.lstrip("ss")
print(res9)
print(my_str)
# 鍘绘帀瀛楃涓插彸渚ф寚瀹氱鍙�
res10 = my_str.rstrip("s")
print(res10)
# 鍚屾椂鍘绘帀涓や晶鐨勫瓧绗�
res11 = my_str.strip(" ")
print(res11)
# 瀛楃涓茬殑杩炴帴
res6 = " ".join(res5)
print(res6)
# 宸﹀榻�
my_str = "we"
res11 = my_str.ljust(4, '-')
print(res11)
# 鍙冲榻�
res12 = my_str.rjust(4, '+')
print(res12)
#灞呬腑 濡傛灉瀛楃涓查暱搴﹀皬浜庢垜浠寚瀹氱殑闀垮害锛岄粯璁ゆ槸鐢ㄧ┖鏍� 鐒跺悗涔熷彲浠ユ寚瀹氬～鍏呯殑瀛楃
res13 = my_str.center(5, "ww")
print(res13)
# 鏇挎崲 replace(鈥樹綘瑕佹浛鎹㈢殑瀛楃涓测�欙紝 鈥樼敤浠�涔堟浛鎹⑩�欙紝 鏇挎崲澶氬皯涓�)
res14 = my_str.replace("h", '8')
print(res14)
res15 = my_str.replace('s', '6', 2) 瑙ｉ噴锛氣�榮鈥� 鏄垜瑕佹浛鎹㈢殑 鐢ㄢ��6鈥欐潵鏇挎崲锛� 2璇寸殑鏄浛鎹㈢殑涓暟
print(res15)
# zfill 灏嗗瓧绗︿覆鍙冲榻� 鐒跺悗浣嶆暟涓嶅鐢�0琛� 娉ㄦ剰褰撴寚瀹氫綅鏁板皬浜庡瓧绗︿覆闀垮害 浣跨敤鐨勬槸瀛楃涓查暱搴︽湰韬�
my_str = "aq1"
res16 = my_str.zfill(2)
# 澶у啓杞皬鍐� 灏忓啓杞ぇ鍐�
my_str = "AcjjU"
res17 = my_str.swapcase()
print(res17)
# 鍒囧垎 鎸夌収绗竴涓尮閰嶇殑瀛楃鍘诲垏鍒� 淇濈暀鎸囧畾鍒囧垎鐨勫垏鍒嗗瓧绗︼紝 鍙樻垚鍏冪粍,鍏冪粍绗竴椤规槸鍒囧垎瀛楃宸︿晶鐨勫唴瀹� 绗簩椤规槸浣犳寚瀹氬垏鍒嗗瓧绗� 绗笁椤规槸鍒囧垎瀛楃鍙充晶鐨勫唴瀹�
res18 = my_str.partition("c")
# 鍜宲artition绫讳技 鍙槸鍖归厤鍒囧垎瀛楃 鏄粠鍙冲紑濮�
res19 = my_str.rpartition("c")
print(res19)
# 缁熻瀛楃鍑虹幇鐨勪釜鏁�
res20 = my_str.count("l", 璧峰鍊�, 缁撴潫鍊�)
print(res20)
缂栫爜瑙ｇ爜
璁＄畻鏈哄瓨鍌ㄦ暟鎹娇鐢ㄧ殑鏄簩杩涘埗
鈥� gbk
鈥� 涓�涓腑鏂囧瓧绗� 鍗�2涓�16杩涘埗瀛楄妭
鈥� gb2312
鈥� 涓�涓腑鏂囧瓧绗� 鍗�2涓�16杩涘埗瀛楄妭
鈥� utf-8 -->unicode
鈥� 涓�涓腑鏂囧瓧绗� 鍗�3涓�16杩涘埗瀛楄妭
鈥� a=鈥濆紶涓夆��
鈥� 浣跨敤encode鏉ヨ繘琛岀紪鐮�
鈥� res22 = a.encode("utf-8")
鈥� 浣跨敤decode鏉ヨ繘琛岃В鐮�
鈥� res23 = res22.decode("utf-8")
鈥� 娉ㄦ剰锛涜В鐮佹槸閽堝浜庡瓧鑺傛潵璇寸殑
鏍煎紡鍖栬緭鍑�
# "string%d" % age
age = 18
money = 100000000
print("鎴戠殑骞寸邯鏄�%d" % age)
# 澶氫釜鍊肩殑鎯呭喌 鈥滃瓧绗︿覆%d鍛靛懙鍛�%d鈥� % (age, money)
print("鎴戠殑骞寸邯鏄�%d,鎴戠殑瀛樻%d娲ュ反甯冮煢甯�" % (money, money))
#
闇�瑕佹敞鎰忕殑鏄� %鍚庣殑鍙橀噺鏄緷娆¤祴鍊肩粰浣犵殑鍗犱綅绗�
%d 鏁存暟
%f float绫诲瀷 榛樿杈撳嚭灏忔暟閮ㄥ垎鏄�6浣� 濡傛灉鎯充繚鐣欒嚜宸卞埗瀹氶暱搴� 閭ｄ箞浣跨敤%.浣嶆暟
%s 瀛楃涓�
浣跨敤format
name = "寮犱笁"
age = 30
weight = 80.2
my_str1 = "鎴戝彨{}, 鎴戜粖骞磠}宀侊紝 鎴戜綋閲嶆槸{}".format(name, age, weight)
绗簩绉� 鎸囧畾涓嬫爣鍗犱綅
# 鎸囧畾涓嬫爣鍗犱綅
my_str2 = "鎴戝彨{0}, 鎴戜粖骞磠1}宀侊紝 鎴戜綋閲嶆槸{2}, 鎴戝摜涔熷彨{0}".format(
name, age, weight
)
print(my_str2)
#
params = [name, age, weight] ---銆嬶紙name, age, weight锛�
my_str3 = "鎴戝彨{0}, 鎴戜粖骞磠1}宀侊紝 鎴戜綋閲嶆槸{2}, 鎴戝摜涔熷彨{0}".format(*params)
print(my_str3)
绗笁绉� 鎸囧畾鍗犱綅鍚嶅瓧
my_str4 = "鎴戝彨{u_name}, 鎴戜粖骞磠u_age}宀侊紝 鎴戜綋閲嶆槸{u_weight}, 鎴戝摜涔熷彨{u_name}".format(
u_name=name, u_age=age, u_weight=weight
)
print(my_str4)
params_dict = {"u_name": name, "u_age": age, "u_weight": weight}
my_str5 = "鎴戝彨{u_name}, 鎴戜粖骞磠u_age}宀侊紝 鎴戜綋閲嶆槸{u_weight}, 鎴戝摜涔熷彨{u_name}".format(
**params_dict
)
print(my_str5)
鏁版嵁绫诲瀷
dict鎿嶄綔
my_dict = {"name":"lucy", "age": 20}
clear() 娓呯┖瀛楀吀
fromkeys 鐢熸垚涓�涓柊鐨勫瓧鍏� 绗竴涓弬鏁� 鏄寚瀹氫綘鐨刱ey搴忓垪锛� 绗簩涓弬鏁版槸瀛楀吀瀵瑰簲鐨剉alue
my_dict1 = {}
res = my_dict1.fromkeys([1,2,3], "j")
items() 灏嗗瓧鍏歌浆鎴愬垪琛ㄥ祵濂楀厓缁勭殑褰㈠紡
res = my_dict.items()
print(res)
鎵撳嵃鐨勭粨鏋滃涓嬶細
dict_items([('name', 'lucy'), ('age', 20)])
keys()
鑾峰彇瀛楀吀鎵�鏈夌殑閿�
values()
鑾峰彇瀛楀吀鎵�鏈夌殑鍊�
pop(key)
寮瑰嚭涓�涓猭ey瀵瑰簲鐨剉alue鍊�, 鍘熸潵瀛楀吀灏嗕細鍒犻櫎鎺夊搴旂殑閿�煎
res = my_dict.pop("name")
print(res)
print(my_dict)
popitem()
寮瑰嚭瀛楀吀鐨勪竴椤� 鐒跺悗鍘熸潵鐨勫瓧鍏� 灏嗕細绉婚櫎鎺夊搴旈敭鍊煎
setdefault锛坘ey, value锛�
鍦ㄥ師鏉ュ瓧鍏哥殑鍩虹涓� 娣诲姞涓�涓敭鍊煎 濡傛灉key 瀛樺湪灏嗕笉浼氳缃垚鍔燂紝 濡傛灉key涓嶅瓨鍦� 閭ｄ箞鎵嶇敓鏁�,
鍑芥暟鎿嶄綔鐨勮繑鍥炵粨鏋� 濡傛灉key瀛樺湪鏄� 鍘熸潵杩欎釜key瀵瑰簲value 鍚﹀垯杩斿洖鐨勬槸浣犺缃殑value
res = my_dict.setdefault("name", 'lili')
print(res, my_dict)
res = my_dict.setdefault("samll_name", 'lili')
print(res, my_dict)
update(瀛楀吀)
鍦ㄥ師鏉ュ瓧鍏哥殑鍩虹涓婅拷鍔犳柊鐨勯敭鍊煎 濡傛灉key鏈夌浉鍚岀殑閭ｄ箞 鏇存柊鍘熸潵瀛楀吀key鎵�瀵瑰簲鐨剉alue
my_dict2 = {"money":10, "hobby":[1,2,34], 'name':"bob"}
my_dict.update(my_dict2)
print(my_dict)
list鎿嶄綔
count() 璁℃暟 鏉ョ粺璁″垪琛ㄥ厓绱犲嚭鐜扮殑娆℃暟
extend锛堝彟涓�涓垪琛級 灏嗗彟涓�涓猯ist杩藉姞鍒拌皟鐢ㄥ垪琛ㄥ悗杈�
a = ["abc", "abcd", "e", "as"]
b = [1,2,4]
a.extend(b) 灏哹鍒楄〃娣诲姞鍒癮閲�
index锛堣鎵剧殑鍏冪礌锛� 鎵剧殑璧峰鍊硷紝鎵炬湯浣嶅�硷級
鈥� 杩斿洖浣犺鏌ユ壘鍏冪礌鐨勪笅鏍囷紙杩斿洖鐨勬槸鍖归厤鍒扮殑绗竴涓厓绱狅級 濡傛灉鍏冪礌涓嶅湪鍒楄〃閲� 閭ｄ箞浠栧皢浼氭姤涓�涓猇alueError
res = a.index("absssc",2, len(a))
print(res)
insert(瑕佹彃鍏ョ殑浣嶇疆锛岃鎻掑叆鐨勫厓绱�)
鈥� 褰撶粰瀹氱殑index杈冨ぇ鐨勬椂鍊� 閭ｄ箞鏄拷鍔犲埌鏁扮粍鐨勬渶鍚�
a.insert(10002, "9")
print(a)
pop锛堥渶瑕佸脊鍑虹殑涓嬫爣锛�
鈥� 杩斿洖寮瑰嚭鐨勫厓绱狅紝鍦ㄥ師鏉ョ殑鍒楄〃鍒犻櫎瀵瑰簲涓嬫爣鐨勫厓绱�
a.pop(0)
print(a)
remove锛堣绉婚櫎鐨勫厓绱狅級 涓嶈繑鍥� 鍒犻櫎鐨勫厓绱狅紙鍒犻櫎鐨勬槸浠栧尮閰嶇殑绗竴涓級
鈥� 濡傛灉瑕佺Щ闄ょ殑鍏冪礌 涓嶅啀鍒楄〃閲� 閭ｄ箞灏嗕細鎶alueError寮傚父
res = a.remove("abc")
reverse锛堬級
鈥� 灏嗗垪琛ㄧ炕杞� 閫嗗簭 娌℃湁杩斿洖鍊� 鑰屾槸鐩存帴褰卞搷鍘熸潵杩欎釜瀛楃涓�
a.reverse()
sort锛堬級
鈥� 鎺掑簭 榛樿鏄鏁扮粍閲岀殑鍏冪礌鐨凙SCII姣旇緝
鈥� 濡傛灉鎸囧畾浜唊ey鍙傛暟(鎺掑簭瑙勫垯)锛屽氨浣跨敤鏂扮殑瑙勫垯锛�
鈥� reverse 鏉ヨ缃槸涓嶆槸闄嶅簭鎺掑垪 榛樿Flase鏄崌搴忔帓鍒�
鎸囧畾鎺掑簭鐨勮鍒�
def str_len(my_str):
return len(my_str)
鎺掑簭
res = a.sort(key=str_len, reverse=True)
print(res, a)
灏嗗嚱鏁颁綔涓哄弬鏁颁娇鐢�
def my_function(fun, value):
res = fun(value)
print(res)
灏哸bs鍑芥暟 褰撴垚鍙傛暟浣跨敤
my_function(abs, -2)
浠诲姟
鈥� 浜嗚В鍐掓场鎺掑簭 閫夋嫨鎺掑簭 鎻掑叆鎺掑簭
鈥� 浜嗚В鏃堕棿澶嶆潅搴� 绌洪棿澶嶆潅搴�
鈥� 瀹屽杽瀛︾敓绠＄悊绯荤粺澧炲姞鎿嶄綔濡備笅
鈥� 5 鎿嶄綔鏄� 姹傚鐢熺殑骞冲潎鎴愮哗 瀛楀吀values鍑芥暟
鈥� 6 姹備笉鍙婃牸瀛︾敓 60鍒嗕竴涓�
鈥� 7 姹傛渶楂樺垎鍜屾渶浣庡垎
鈥� 8 閫�鍑�
鈥� 鐭ヨ瘑鐐�
鈥�