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python while 循环 计算1到100所有偶数之和

  • 2026-03-26 01:25:00
python while 循环 计算1到100所有偶数之和
1，左闭右开，所以 i < 101，不是100
2，i = i + 1 注意缩进要和if对齐才是在while内跳出循环的写法，注意此处缩进。
i = 0
a = 0
while i < 101:
if i % 2 == 0:
        a = a + i
    i = i + 1
print(a)
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  1. CONNECT:[ UseTime:0.001130s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
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  13. SELECT * FROM `article` WHERE `id` < 477904 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001856s ]
  14. SELECT * FROM `article` WHERE `id` < 477904 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.014522s ]
  15. SELECT * FROM `article` WHERE `id` < 477904 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008789s ]
0.230033s