1.输出 1-100内的所有偶数
start = 1
while start <101:
tmp = start % 2
if tmp == 1:
pass
else:
print(start)
start += 1
2.输出 1-100内的所有奇数
start = 1
while start <101:
tmp = start % 2
if tmp == 1:
print(start)
else:
pass
start += 1
3.求1-2+3…99的所有数的和
start = 1
sum = 0
while start <100:
tmp = start % 2
if tmp == 1:
sum = sum + start
else:
sum = sum -start
start +=1
print(sum)
4.输入10以内的正整数
start = 1
flag = True
while flag:
print(start)
if start == 10:
flag = False
start += 1
print("end")
5.输入除7外的10以内的正整数
start = 1
while True:
print(start)
start += 1
if start == 7:
start += 1
continue
if start == 10:
start += 1
break
print("end")
6.求1-100以内所有正整数的和
start = 1
sum = 0
while True:
sum =sum + start
if start == 100:
break
start += 1
print(sum)