<p id="main-toc"><strong>目录</strong></p>
<p id="%E7%94%A8printf%E8%BE%93%E5%87%BA-toc" style="margin-left:80px;"><a data-token="aebf828283e41bd6b9af71c980731b51" href="https://blog.csdn.net/weixin_42072280/article/details/85111577#%E7%94%A8printf%E8%BE%93%E5%87%BA" rel="nofollow">用printf输出</a></p>
<p id="%E7%94%A8scanf%E8%BE%93%E5%85%A5-toc" style="margin-left:80px;"><a data-token="ec47c30e52fa4e8f77f22205e1d77358" href="https://blog.csdn.net/weixin_42072280/article/details/85111577#%E7%94%A8scanf%E8%BE%93%E5%85%A5" rel="nofollow">用scanf输入</a></p>
<p id="%E7%94%A8gets()%E8%BE%93%E5%85%A5-toc" style="margin-left:80px;"><a data-token="9ff3cd23f4cd77c480ba825b93f66a4b" href="https://blog.csdn.net/weixin_42072280/article/details/85111577#%E7%94%A8gets()%E8%BE%93%E5%85%A5" rel="nofollow">用gets输入</a></p>
<p id="%E7%94%A8puts%E8%BE%93%E5%87%BA-toc" style="margin-left:80px;"><a data-token="fd08874e9e4dce759596b57b6b8cdb36" href="https://blog.csdn.net/weixin_42072280/article/details/85111577#%E7%94%A8puts%E8%BE%93%E5%87%BA" rel="nofollow">用puts输出</a></p>
<hr id="hr-toc"><table border="1" cellpadding="1" cellspacing="1"><tbody><tr><td>
<h3 id="%E7%94%A8printf%E8%BE%93%E5%87%BA">用printf输出</h3>
<p>输出方法1：printf 逐个字符输出。</p>
<blockquote>
<p>void main(void){<br>
char c[] = "I am happy";<br>
int i;</p>
<p></p>
<p> for(i =0; i < 10; i++){<br>
printf("%c", c[i]);<br>
}<br>
printf("\n");</p>
<p>}</p>
</blockquote>
<p>输出方法2：printf 将整个字符串一次输出。</p>
<blockquote>
<p>void main(void){<br>
char c[] = "I am happy";<br>
<br>
printf("%s", c); //必须得是字符数组名，c.</p>
<p>}</p>
</blockquote>
<h3 id="%E7%94%A8scanf%E8%BE%93%E5%85%A5">用scanf输入</h3>
<p>如果scanf中%d是连着写的如“%d%d%d”,在输入数据时，数据之间不可以用逗号分隔，只能用<strong>空白字符（空格或tab键或者回车键）</strong>分隔——“2 （空格）3（tab） 4” 或 “2（tab）3（回车）4”等。若是“%d,%d,%d”，则在输入数据时需要加“,”，如“2,3,4”。</p>
<p>输入方法1：scanf 逐个字符输入。</p>
<p></p>
<blockquote>
<p>void main(void){<br>
char c[10];<br>
int i;<br>
<br>
printf("请输入多个字符(不多于10个)：");<br>
for(i = 0; i < 10; i++){<br>
scanf("%c", &c[i]);<br>
}<br>
printf("输入的多个字符为：%s", c); <br>
}</p>
</blockquote>
<p>输入方法2：scanf 输入一个字符串。</p>
<blockquote>
<p>void main(void){<br>
char c[10];<br>
<br>
printf("请输入多个字符(不多于10个)：");<br>
<span style="color:#f33b45;">scanf("%s", c);</span></p>
<p><br>
printf("输入的多个字符为：%s", c); <br>
}</p>
</blockquote>
<p><img alt="" class="blockcode" height="135" src="https://201907.oss-cn-shanghai.aliyuncs.com/cs/5606289-7c61a506d6d6ac9bfa33c8666471d5b1.png" width="595"></p>
<p><span style="color:#f33b45;">scanf("%s", c);</span></p>
<p><span style="color:#f33b45;">//系统自动在China后面加一个'\0'结束符。</span></p>
<p><span style="color:#f33b45;">printf("%s", c);</span></p>
<p><span style="color:#f33b45;">//按字符数组名c找到其数组起始地址，然后逐个输出其中的字符，直到遇到'\0'为止。</span></p>
<p></p>
<p><img alt="" class="blockcode" height="120" src="https://201907.oss-cn-shanghai.aliyuncs.com/cs/5606289-4d1bb90ca61c3f0a3bd76d8c44c90934.png" width="513"></p>
<p></p>
<p><span style="color:#f33b45;">为什么只输出一个anan呢？</span></p>
<p><span style="color:#f33b45;">由于系统把空格字符作为输入的字符串之间的分隔符，因此只将空格前的字符anan送到数组c中。</span></p>
<p></p>
<p><strong><span style="color:#f33b45;">//数组中未被赋值的元素的值自动置'\0'。</span></strong></p>
<p><span style="color:#f33b45;">由于把"anan"作为一个字符串处理，故在其后加</span><span style="color:#f33b45;">'\0。c数组状态如下：</span></p>
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