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炫麗的倒計(jì)時(shí)效果Canvas繪圖與動(dòng)畫

• Chapter1 Welcome to the world of Canvas!
• 1-1 Welcome to the world of Canvas!
• Chapter2 Canvas drawing basics
• 2-1 Create canvas
• 2-2 Draw lines, polygons and jigsaw puzzles
• 2-3 Draw arcs and circles
• Chapter3 Implementation of countdown electronic clock
• 3-1 The basic structure of the countdown program
• 3-2 Detailed drawing of countdown digital clock
• 3-3 Countdown time calculation
• Chapter4 Dazzling animation effects
• 4-1 A basic function to implement animation
• 4-2 Use canvas to do a physics experiment
• 4-3 Gorgeous ball rolling effect
• Chapter5 Optimize, expand and turn into a gorgeous clock
• 5-1 Performance optimization
• 5-2 Screen adaptive
• 5-3 Improved into a time management gadget
• 5-4 Modified to a dazzling clock effect
• 5-5 Summarize
• 5-6 Comprehensive introduction