1. The nonpositive numbers include zero and all the negative numbers.
非正数包括零和所有的负数。
2. The function returns true if the input is nonpositive, and false otherwise.
如果输入是非正数,则该函数返回 true,否则返回 false。
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UPDATE `tool_word` SET `views` = `views` + 1 WHERE `id` = 62649 [ RunTime:0.004704s ]
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SELECT `id`,`word` FROM `tool_word` WHERE `id` < 62649 AND `switch` = 1 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001316s ]
SELECT `id`,`word` FROM `tool_word` WHERE `id` > 62649 AND `switch` = 1 ORDER BY `id` LIMIT 1 [ RunTime:0.001586s ]