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1. ÔËÓÃ expr
#expr 10 + 10 ===> 20
#a=`expr 10 % 3`;echo $a ===> 1; a, k6 [+ N%
#|/ }4 [% N
# b=10;b=`expr $b + 1` ===> 11 (ʵÏÖÁ˱äÁ¿µÄ×ÔÔö1)
2. ·½·¨ÈçÏÂ
#! /bin/sh
VAR=1
VAR=$(($VAR+1))
echo $VAR


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#include <stdio.h>
#include <wchar.h>
#include <locale.h>
int main()
{
#ifdef _WIN32
  setlocale(LC_ALL, "chs");
#else
  setlocale(LC_ALL, "zh_CN.UTF-8");
#endif
  wchar_t KZg[] = {0x6211, 0};
  char buf[10] = {0};
  wcstombs ......

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