7个基本掌握
join
split
find
strip
upper
lower
replace
进阶掌握
索引
切片
len
range
test = "abcdeabcfg" v = test[4] print(v) w = test[0:3] print(w) x = len(test) print(x)
for循环
#while冗长，for的精简 test = "我是一个卧底" # index = 0 # while index < len(test): # v = test[index] # print(v) # index += 1 for i in test: print(i)
原文：https://www.cnblogs.com/lylyfly/p/9276277.html