题解 | #包含数字9的数#
包含数字9的数
http://www.nowcoder.com/practice/0948f4f3344c452f843afd3585dd0f8d
BC89 包含数字9的数
思路:
step1:从1到2019;如果‘9’在其中,累加,最后打印结果;
代码如下:
n = 2019
i = 1
c = 0
while i <= n:
if '9' in str(i):
c += 1
i += 1
print(c)
包含数字9的数
http://www.nowcoder.com/practice/0948f4f3344c452f843afd3585dd0f8d
n = 2019
i = 1
c = 0
while i <= n:
if '9' in str(i):
c += 1
i += 1
print(c)
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