choleric 发表于 2025-3-21 19:33:51

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N斯巴达人 发表于 2025-3-21 22:38:12

Extracting parts of strings,s print all the characters from the first which is ‘a’ to the third which is ‘c’, so the result is ‘abc’. If there is only one number in the bracket, as in line 50, this means just print the character at that number, in this case the fourth which is ‘d’.

amyloid 发表于 2025-3-22 00:49:20

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embolus 发表于 2025-3-22 05:50:41

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Terrace 发表于 2025-3-22 10:03:53

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确定无疑 发表于 2025-3-22 13:48:49

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炸坏 发表于 2025-3-22 20:46:21

Stephen A. Brighton,Charles E. Orser Jr.it a name which can be referred to later. The computer ignores REM statements but it is good programming practice to include them. From now on each of our programs will start with a REM statement. For example:

annexation 发表于 2025-3-22 21:29:12

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consolidate 发表于 2025-3-23 04:22:31

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Mri485 发表于 2025-3-23 08:59:29

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查看完整版本: Titlebook: Beginning BASIC with the ZX Spectrum; Judith Miller Textbook 1985Latest edition Macmillan Publishers Limited 1985 BASIC.computer science.p