2月学习回顾

print ("Hello World")
print ("Hi baobao")
message = "hello world"
print (message) #coding=utf-8 使用变量
message = "hi"
print (message)
name = "sun zhen"
print (name.title())#coding=utf-8 通过“方法”将姓名首字母设为大写
print (name.upper())#coding=utf-8 姓名全部大写
print (name.lower())#coding=utf-8 姓名全部小写
first_name = "sun"
last_name = "zhen"
full_name = first_name+" "+last_name#coding=utf-8 字符串通过“+”组合
print (full_name)
print ("Hi," + full_name.title() + "!")
message = "Hi," + full_name.title() + "!"
print (message)
print ("Languages:\n\tPython\n\tC\n\tJava")#coding=utf-8 \n为换行符\t为制表符
favorate_language = " sun "
print (favorate_language)
print (favorate_language.rstrip())#coding=utf-8 清除后面的空格
print (favorate_language.lstrip())#coding=utf-8 清除前面的空格
print (favorate_language.strip())#coding=utf-8 清除两端空格
message = "One of python's strengths is its diverse community"#coding=utf-8 语句中包含'，则使用双引号避免字符串语法错误
print (message)
name = "sun zhen"
print ("Hi,"+ name.title()+",would you like to learn some python today")
message = 'Albert Einstein once said, "A person who never made a mistake never tried anything new"'
print (message)
print (2+3)
print (2-3)
print (2*3)
print (2/3)
print ((0.2+3)**3)
age = 23
print ("Tom's age is" + " "+str(age))#coding=utf-8 str()是一个函数，不是方法，所以不能在"age"后
print (2+6)
bicycles = ['a','b','c','d']
print(bicycles)
print(bicycles[0])#索引从0而非1开始
print(bicycles[0].title())#可调用字符串方法大写
print(bicycles[-1])#序号-1为调用列表最后一个元素
message = "my name is " + bicycles[0].title() + "!"
print(message)
names = ['amy','david','henry','jim','kevin']
print("Hi, " + names[0].title() + " ,come on")
print("Hi, " + names[1].title() + " ,come on")
print("Hi, " + names[2].title() + " ,come on")
print("Hi, " + names[3].title() + " ,come on")
print("Hi, " + names[4].title() + " ,come on")
names[0] = 'sun'#修改元素值
print(names[0].title())
print("Hi, " + names[0].title() + " ,come on")
names.append('july')#字符串方法添加列表元素
print(names)
newlist =