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Python 入门与基础 print 打印语句

  • 2026-01-29 20:09:12
Python 入门与基础 print 打印语句
Python的print是向控制台输出信息，用来调试程序和程序运行结果。print 三种使用：
1️⃣ Basic String(字符串)
程序：print("Hello World")
结果：Hello World
2️⃣ Variables(变量)
程序：name = "Ai" ；print(f"Hi {name}")
结果：Hi Ai
3️⃣ Separator(分割符)
程序：print("A", "B", sep="-")
结果：A-B
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  1. CONNECT:[ UseTime:0.001028s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001748s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.001177s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.003569s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001633s ]
  6. SELECT * FROM `set` [ RunTime:0.024314s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001976s ]
  8. SELECT * FROM `article` WHERE `id` = 465024 LIMIT 1 [ RunTime:0.005256s ]
  9. UPDATE `article` SET `lasttime` = 1770513752 WHERE `id` = 465024 [ RunTime:0.009033s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.002486s ]
  11. SELECT * FROM `article` WHERE `id` < 465024 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.014880s ]
  12. SELECT * FROM `article` WHERE `id` > 465024 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.015155s ]
  13. SELECT * FROM `article` WHERE `id` < 465024 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004431s ]
  14. SELECT * FROM `article` WHERE `id` < 465024 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.005192s ]
  15. SELECT * FROM `article` WHERE `id` < 465024 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002518s ]
0.177939s