Python 随手记

print(ord('朱'))    #26417

print(chr(26417))   #朱

print(eval('3+4'))  #7

//整除

%取余

系列解包赋值

a,b='a','b'        #元组分解

[a,b]=['a','b']    #列表分解

a,b,c='abc'       #字符串分解

a,*b='abc'        #扩展的字符串分解

#菱形

rows=7

top = (rows+1) // 2

for i in range(1, top):

    for j in range(1, top - i):

        print(' ', end='')

    for x in range(1, 2 * i):

        print('*', end='')

    print()

bottom=rows // 2

for y in range(1, bottom+1):

    for a in range(1,y+1):

        print(' ', end='')

    for b in range(1,(bottom-y)*2):

        print('*', end='')

    print()