28hua
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C语言的数组下标为什么要设计成从零开始

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  •   28hua · Oct 29, 2013 · 5231 views
    This topic created in 4579 days ago, the information mentioned may be changed or developed.
    C语言中一个拥有n个元素的数组其下标范围是0到n-1却不是1到n,这种设计有什么优势吗?
    10 replies    1970-01-01 08:00:00 +08:00
    fantasticfears
        1
    fantasticfears  
       Oct 29, 2013   ❤️ 1
    对于i = 0; i < N和i = 1; i <= N的循环次数计数来说N - 0 = N次和N - 1 + 1 = N,前者是更直观的,详细见Dijkstra对此的解释:http://www.cs.utexas.edu/users/EWD/ewd08xx/EWD831.PDF

    [1] stackoverflow, Why does the indexing start with zero in 'C'? http://stackoverflow.com/questions/7320686/why-does-the-indexing-start-with-zero-in-c
    [2] Guido van Rossum about why python uses 0-based index https://plus.google.com/115212051037621986145/posts/YTUxbXYZyfi
    krfantasy
        2
    krfantasy  
       Oct 29, 2013
    偏移量
    cctvsmg
        3
    cctvsmg  
       Oct 29, 2013
    lua的下标为什么要从1开始? 反人类!
    AstroProfundis
        4
    AstroProfundis  
       Oct 29, 2013
    angelface
        5
    angelface  
       Oct 29, 2013
    数组的下标应该从0还是1开始?我提议的妥协方案是0.5,可惜他们未予认真考虑便一口回绝。
    ----Stan Kelly-Bootle
    angelface
        6
    angelface  
       Oct 29, 2013
    10iii
        7
    10iii  
       Oct 29, 2013   ❤️ 1
    a[i] == a + i;
    stanleesq
        8
    stanleesq  
       Oct 29, 2013
    @angelface 笑尿
    28hua
        9
    28hua  
    OP
       Oct 29, 2013
    @angelface 居然是手稿
    28hua
        10
    28hua  
    OP
       Oct 29, 2013
    @fantasticfears 这样的话就不必老纠结多1少1的问题了。
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