小编Yeo*_*eng的帖子

我试图实现一个向用户"输入"消息的功能.像"T"之类的东西 - 等待 - "Th" - 等待 - "Tha"...我想出了这个功能,但它会等待然后立即更新所有字母(而不是单独更新):

var tu = 'Thank you'
var timing = 1000
for (var i=0; i<=tu.length; i++) {
    setTimeout(function (){input.text(tu.slice(0, i))}, timing)
    timing = timing + 1000
}

但是,当我这样做(不要笑),它的工作..

setTimeout(function (){input.text('t')}, 400)
setTimeout(function (){input.text('th')}, 800)
setTimeout(function (){input.text('tha')}, 3000)
setTimeout(function (){input.text('than')}, 4000)
setTimeout(function (){input.text('thank')}, 5000)
setTimeout(function (){input.text('thank ')}, 6000)
setTimeout(function (){input.text('thank y')}, 7000)
setTimeout(function (){input.text('thank yo')}, 8000)
setTimeout(function (){input.text('thank you')}, 9000) 

任何人都可以阐明为什么循环的行为与我的剪切粘贴工作不同？

我正在努力整合代码库（将qsort compar函数移动到新的标头/库，以便可以在不复制/意大利面的情况下共享它），并注意到在此过程中出现了一些奇怪的情况。

这是一个示范性清单：

#include <stdlib.h>
#include <string.h>
#include <stdio.h>

 /** One record has three fields.
 * Each field contains a NULL terminated string of length at most 7 characters. */
typedef char Record[3][8];

int main(void)
{
    Record database[5] = {0};

    strcpy(database[0][0], "ZING");
    strcpy(database[0][1], "BOP");
    strcpy(database[0][2], "POW");

    strcpy(database[1][0], "FIDDLY");
    strcpy(database[1][1], "ECHO");
    strcpy(database[1][2], "ZOOOM");

    strcpy(database[2][0], "AH");
    strcpy(database[2][1], "AAAAA");
    strcpy(database[2][2], "AH");

    strcpy(database[3][0], "BO");
    strcpy(database[3][1], "DELTA");
    strcpy(database[3][2], "FO");

    strcpy(database[4][0], "FRRING");
    strcpy(database[4][1], "CRASH");
    strcpy(database[4][2], "FOO");

    //(gdb) ptype record_compare_field_1
    //type = int (char (*)[8], …