background: the existing N items need to be packed into different express parcels. when the total tax in each package is less than 50 yuan, the goods in each package will be exempt from tax . It is required to ensure that the number of parcels is as sm...
if you start positioning only when it is called, should you make a timing to locate it every 1 second? ...
Student information management needs to be designed in the project. Contains grade, class, students and other information. but there is a problem. The grade of the students changes every year, and the first grade is promoted to the second grade. how ca...
now I have a double for loop, which aims to delete the div (that is, the serial number of the following figure) of the subloop in the double loop. But how do you get labels, and delete its div? HTML Code: < div id= "dangerOperateDiv " > <div...
there are 4 animations. One after another, the animation of browsing the page with delay time is normal but when Wechat opened the sharing, it was time to select friends and deselect and found that several animation delays of the original page were all...
I ve been looking in my settings for a long time, but I can t find out where to remove it. Do my friends know it? ...