Python 字符串魔法七

################6个基本魔法###################
#join    '_' join(xxxxx)
#split
#find
#strip
#upper
#lower



################ 灰魔法###########################
test = "有种你冲我来"  #索引，下标,获取字符串中的某一个字符
index = 0
while index < len(test):
    v = test[index]
    print(v)
    index +=1



#for循环                        注意：for 变量 in 字符串
                                 #变量名
for zjw in test:
    print(zjw)


v = test[3]
print(v)

#切片
v1 = test[0:1] #  0=< <1
print(v1)

v1 = test[0:-1] #  0=< <-1
print(v1)

#python3: len获取当前字符串中由几个字符组成  len=length
v3 = len(test)
print(v3)

#
len("fasfsd")
v = '_'.join("dasdasdadad")#在字符串中每一个都加入一个_
print(v)

#
li  = [11,22,33,44,55,"asdf",444,999] # len 列表是按照逗号后面有多少
len("dasdasdad")
v= len(li)
print(v)


s = "dakdd;sdsd" #把k为分隔符
v4 = s.split("k")
print(v4)