Case 1)
12 minutes56 secondsCase (2)
36 minutes40 secondsCase (3)
17 minutes45 secondsLogin verification(1)
18 minutes11 secondsLogin verification (2)
08 minutes01 secondsscript tag position
16 minutes15 secondsIntroduction of JQuery
32 minutes07 secondsbasic selector
12 minutes53 secondslevel selector
15 minutes11 secondsContent selector
15 minutes08 secondsRegistration verification case (1)
38 minutes21 secondsRegistration Verification (2)
28 minutes00 secondsRegistration Verification (3)
13 minutes18 secondsRegistration Verification (1)
06 minutes39 secondsRegistration Verification (2)
09 minutes41 secondsbasic selector
19 minutes12 secondsattribute selector
16 minutes36 secondsChild element selector
16 minutes30 secondsAttribute manipulation
17 minutes03 secondscss class
25 minutes28 secondshtml，text，val
14 minutes32 secondseach traverses 1
13 minutes56 secondseach traverses 2
04 minutes16 secondsInternal insertion
11 minutes51 secondsExternal insertion
09 minutes49 secondsDOM manipulation
23 minutes22 secondsloading event
10 minutes14 secondsevent switching
03 minutes50 secondsIncident case
16 minutes33 secondsevent handling
14 minutes36 secondsevent handling
08 minutes23 secondsbasic animation
14 minutes51 secondsbasic animation
05 minutes48 secondsbasic animation
09 minutes00 secondsAnimation case
15 minutes01 secondsFinished plug-in
16 minutes02 seconds