python_case-1
#题目-1 求1-100的和.
# 1+100 求和
sum=0
for i in range(1,101):
sum=sum+i
print("总和为:{:^3.0f}".format(sum))
#题目-2: 求1-100偶数总和:
sum=0
for i in range(1,101):
if i % 2 ==0:
sum +=i
else:
continue
print("1-100偶数和为:{:^3.0f}".format(sum))
#题目-3:求1-100奇数总和:
sum=0
for i in range(1,101):
if i % 2 !=0:
sum +=i
else:
continue
print("1-100偶数和为:{:^3.0f}".format(sum))
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