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1、一份完整的行业门户网站策划开发设计营运方案（Acompleteindustryportalplanning,development,design,operationplan）DateandtimeThereasonisthatyouusealotofJavaScripteffects.Forexample,thespecialeffectsofthemouse,thespecialeffectsofthecolumnsonthepage,thespecialeffectsofthestatusbar,an
2、dsoon.Thespecialeffectsarefirstdownloadedtoyourlocalmachinebytheserverandthenrunonyourlocalmachine,andthenyoucanseeit.Specialeffectsdomore,willrunmostofthedaycanbecompletedinyourlocalmachine,andifyourmachineconfigurationingeneral,thenmoreslowly,evenifallt
3、heeffectsarecompleted,yourpagewillbealsoveryuncomfortable.JavaScriptisalsomorethantheslowspeed,andtheimportantthingisthatmostpeopleuseitdonotknowhowitiswritten,justcopiedfromotherstationbytheway,intheprocessofcirculation,therewillbealostpartofthecode,ther
4、esultsyoucopiedmaybewrongorincompletethecodethatwillleadyoutothewebsite;andifthereisapracticaljokepeopledisguisedasmaliciouscodespecificcodetoyou,andyoudon'tunderstand,copytothesite,thennotonlywhenyouopenyoursitewillsuffer,don'topenyourwebsiteisalsoveryli
5、kelytobecomevictims.Therefore,itisnecessarytoreducetheuseofJavaScriptspecialeffects(threekindsofspecialeffectswithin),otherwiseitwillcertainlybeharmfultoyourwebsite.Ifyouwanttouseittochoosethespecificcoderelativelysafe,tobettersitetocopy,nottothemixedstat
6、ion.Reasontwo.Youhaveusedlarge,untreatedpicturesonthepage.Picturescanbeprocessedtoreducethenumberofbytes,otherwise,manypictureswilltakeupalotofspaceatthebeginning,andmakethesiteopenslowly.Photoshop,fireworksandothergraphicssoftwarecanbeusedtoreducethepict
7、uresize.Reasonthree.Youhaveflashorvideofilesonyourpage.Manynetizensliketodoflashanimation,songs,orliveTV,livemoviesandsoonontheirhomepage.Infact,thiswillslowyourpagedownconsiderably.Flashcanbedownloadedwhileplaying,butoftenduetonetworkreasons,cannotbedown
8、loadedsuccessfully,theresultsofyourpagewillhavebeenwaitingtodownloadthestate,andcannotbesuccessfullycompleted.MoviesandTVshowsareworse.Theyusuallyhavetobebufferedanddownloadedalittlebitbeforetheycanbeplayed.Ifthenet
