def 翻转():
a = "abcd"
c = a[::-1]
print(c)
def 整数次幂(a):
if type(a)==int:
c = a ** a
print(c)
else:
print("数值不为整形")
def 判断年份(年份):
if (int(年份)%4)==0 and (int(年份)%100)!=0 or (int(年份)%400)==0:
return print(True)
else:
return print(False)
# a=[1,1,2,3,5,8,13,2]
# b=list(set(a))
# print(b)
def 成绩(*c):
b=0
for i in c:
b=b+i
v=b/len(c)
return print("总:",str(b)), print("平均:",str(v))
a=["你好","你好","爱你"]
dict={}
for i in a:
if i not in dict:
dict[i] = 1
else:
dict[i] += 1
print(dict)
求列表或元组内相同数据
a=["你好","你好","爱你"]
dict={}
for i in a:
if i not in dict:
dict[i] = 1
else:
dict[i] += 1
print(dict)
字符串分割方法
str = “Line1-abcdef \nLine2-abc \nLine4-abcd”;
print str.split( ); # 以空格为分隔符,包含 \n
print str.split(’ ', 1 ); # 以空格为分隔符,分隔成两个