====== Python 语法基础 ======
===== Python 变量类型 =====
Python是有变量类型的，而且会强制检查变量类型。\\
内置的变量类型有如下几种：

<code python>
#整型
integer_number = 90

#浮点
float_number = 90.4

#复数
complex_number = 10 + 10j

#list 序列
sample_list = [1,2,3,'abc']

#dictionary 字典
sample_dic = {"key":value, 2:3}

#tuple 只读的序列
sample_tuple = (1,3,"ab")

#嵌套
sample_nest = [(1,2,3),{1:2,3:4,'key':[1,2]},3]
</code>
===== 一切都是对象 =====

<code python>
'str str'.split() # ['str', 'str']

# 1..is_integer()   # True

# is_integer(1)     # True

# 1.0.is_integer()  # False

[3,2,1].sort()    # [1,2,3]

sort([2,1,3])     # [1,2,3]
</code>


===== Python 程序流程控制 =====
==== 条件判断结构 ====
<code python>
flag1 = some_value
flag2 = other_value
if flag1:
    do_function_1()
elif flag2:
    do_function_2()
else:
    do_function_3()
</code>

==== 循环结构 ====
<code python>
for i in range(0, 10):
    print(i)

for i in ['a','b','c','dd','eee']:
    print(i)
</code>


===== Python 标准库 =====
Python 带有很丰富的标准库，给开发带来了很大的方便。 \\