I m using a method now. can know whether the other person is online, that is, ask whether the other party is still online through ajax + timeout every 30 seconds. update the current timestamp and then use the current time to deduct the update time of...
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1, the demand is to have a list of pictures. After right-clicking, the current picture will zoom out and disappear, and the following picture will automatically slide to fill the position. I found that after the vue data was updated, the view was refres...
< H2 > Code 001 version 7.0 < H2 > <?php $a= ; $a[ 1 ]=""; $a[ 0 ]="zzz"; var_dump($a); echo "PHP:".phpversion(); ?> < H2 > results 001 version 7.0 < H2 > array(2) { [1]=> string(9) "" [0]...
now when the map of China is displayed, it is a province-by-province display, the demand of Party A; echart official display is all loaded out, not very good-looking! ...