字符串命令

name = "my name is kim"

print(name.capitalize())
# 首字母大写
print(name.count("m"))
# 计数
print(name.center(50,"-"))
# 居中，两端加横线
print(name.endswith("m")) 
# 判断以什么结尾，比如邮箱
print(name.find("name"))
# 寻找从第几个字符起
print(name[name.find("name"):])