如何检查变量是否为整数?

时间:2019-04-18 07:34:06

标签: python

如何检查语句中变量是否为整数?

就像字符串一样,我们可以说:

if i == " "
    return something

我怎么说:if i == integer ??

2 个答案:

答案 0 :(得分:2)

赞:

grep -oP "^10.9.0.*,wq$1-\K.*" | cut -d, -f1 | sort

或者这样:

         String.prototype.hashCode = function() {
            var hash = 0,
                i, chr;
            if (this.length === 0) return hash;
            for (i = 0; i < this.length; i++) {
                chr = this.charCodeAt(i);
                hash = ((hash << 5) - hash) + chr;
                hash |= 0; // Convert to 32bit integer
            }
            return hash;
        };

您将在此处找到更多信息:What's the canonical way to check for type in Python?(我认为您的问题是重复的)

答案 1 :(得分:0)

使用isinstance

foreach($course_cat->result() as $c){

                if ($c->no_of_events == 0) {
                    continue;
                }
echo "<td>".$c->no_of_events."</td>";

                $total_events += $c->no_of_events;
}