sscanf函数
/* GitHub stylesheet for MarkdownPad (http://markdownpad.com) /
/ Author: Nicolas Hery - http://nicolashery.com /
/ Version: b13fe65ca28d2e568c6ed5d7f06581183df8f2ff /
/ Source: https://github.com/nicolahery/markdownpad-github */
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ul li ul:first-of-type,
ol li ol:first-of-type,
ul li ol:first-of-type,
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ul ul, ul ol, ol ol, ol ul {
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table th {
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table tr {
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table tr:nth-child(2n) {
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/* IMAGES
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img {
max-width: 100%
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sscanf函数基本知识
函数原型
int sscanf( const char *buffer, const char *format [, argument ] ... );
函数功能
将buffer中的数据按照format格式读取后存储在argument中,返回值表示为成功转换的的数据个数,如果在第一次转换之前候遇到文件结尾就返回EOF。
实例一
#include<stdio.h>
int main()
{
char *buffer = "asdfg10112022";
char *temp1[10];
char *temp2[20];
sscanf(buffer,"%[a-zA-Z]%[1-9]",temp1,temp2);
printf("%s\n%s\n",temp1,temp2);
printf("%d\n",sscanf(buffer,%[a-zA-Z]%[1-9]));
return 0;
}
sscanf一般的用法
1. 常见用法。
charbuf[512];
sscanf("123456","%s",buf);//此处buf是数组名,它的意思是将123456以%s的形式存入buf中
printf("%s\n",buf);//123456
2. 取指定长度的字符串。如在下例中,取最大长度为4字节的字符串。
sscanf("123456","%4s",buf);
printf("%s\n",buf);//1234
3. 取到指定字符为止的字符串。如在下例中,取遇到空格为止字符串。
sscanf("123456abcd edf","%[^ ]",buf);
printf("%s\n",buf);//123456abcd
4. 取仅包含指定字符集的字符串。如在下例中,取仅包含1到9和小写字母的字符串。
sscanf("123456abcdedfBCDEF","%[1-9a-z]",buf);
printf("%s\n",buf);//123456abcded
5. 取到指定字符集为止的字符串。如在下例中,取遇到大写字母为止的字符串。
sscanf("123456abcdedfBCDEF","%[^A-Z]",buf);
printf("%s\n",buf);//sscanf("123456abcdedfBCDEF","%[^A-Z]",buf);
printf("%s\n",buf);
6、给定一个字符串iios/[email protected],获取 / 和 @ 之间的字符串。
sscanf("iios/[email protected]","%*[^/]/%[^@]",buf);
printf("%s\n",buf);//12DDWDFF
7、给定一个字符串“hello, world”,仅保留world。
sscanf(“hello, world”,"%*s%s",buf);/%s遇空格停止,加*则是忽略第一个读到的字符串。
printf("%s\n",buf);//word
认识sscanf函数