1.#split(str=" ", num )
#以str为分隔符截取字符串,指定num,仅截取num个字符串
str38 =" sunck ** is***********a****good*man"
liststr38.split("*")
print(str38.split("*"))
2. 查找字符串中单词的个数
print(list39)
c=0
for s in list39:
if len(s)>0:
c +=1
print(c)
3.以换行符分割字符串
#splitlines([keepends]) 以(' ', ' ', ' ')为分隔符截取字符串返回
str40= ' ' ' sunck is a good man!
sunck is a nice man!
sunk is handsome man !
'''
print(str40.splitlines())
4.#join(seq) 以指定的字符串分隔符,将seq中的所有元素组合成一个字符串
list41 = ['sunck' , 'is' , 'a', 'good', 'man']
str42="&".join(list41)
print(str42)
5字符串求最大最小值
.#max() min()
str43 = "sunck is a good man!z"
print(max(str43))
print("*"+min(str43)+"*")
6.字符串替换
str44 = "sunck is a good good good man"
str45 = str44.replace("good","nice")
print(str45)