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有一个列表,每个元素存放学生姓名、成绩,按学生成绩从优到差排序。
stu=['张三:20','李四:70','王五:88','李六:40','赵琦:55.5']
def sortscore(A):
for j in range(len(A)):
for i in range(len(A)-1):
if A[i].split(':')[1] < A[i+1].split(':')[1]:
A[i],A[i+1] = A[i+1],A[i]
i=i+1
else:
i=i+1
j=j+1
return A
print(sortscore(stu))
有一个列表,每个元素存放学生姓名、成绩,计算学生的总成绩
stu=['张三:20','李四:70','王五:88','李六:40','赵琦:55.5']
def total(A):
sum=0.0
if len(A) == 0:
return 0
elif len(A) == 1:
return float(A.split(':')[1])
else:
for i in range(len(A)):
sum=sum+float(A[i].split(':')[1])
return sum
print(total(stu))