1. Open: normally open; Shortcut; shortcuts; other interactions inlet; turn off and
2 functions: to achieve the normal function; abnormal operation, see the results being given
3. vector (hardware dependent): no electricity; memory; Other external conditions; split screen
4. interaction: music, telephone, charging, running in the background
5. Close: normal; abnormal (exit), empty the killing; unloading
Test ideas
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Origin www.cnblogs.com/wzc27229/p/11318090.html
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