课程
/后端开发
/C
/C语言入门
哪里有问题 还是 其他 有问题？
2015-12-09
源自：C语言入门 4-13
正在回答
你写#include<stdio.h>这个头文件没 没有就写上
可可滴 提问者
流浪_老 回复 可可滴 提问者
onunload写在body中是可以的
http://house.china.com.cn/sousou/%25101%253D%252C%2520%25%43%33%25%45%35%25%42%35%25%45%39%25%42%36%25%43%34%25%42%33%25%41%31%25%44%30%25%43%32%25%43%45%25%43%35%25%43%44%25%46%38%25%44%36%25%42%37%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%32%45%25%41%33%25%43%33%25%41%33%25%43%46%25%41%33%25%43%44%252C%25%44%37%25%43%41%25%44%31%25%46%34%25%44%31%25%41%37%25%42%38%25%41%45_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%43%32%25%45%44%25%42%46%25%43%39%25%42%32%25%41%38%25%43%32%25%44%45%25%43%44%25%46%38%25%44%37%25%41%32%25%44%36%25%42%31%25%44%33%25%41%41%25%42%46%25%41%41%25%42%42%25%41%37%25%33%41%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%44%36%25%45%39%25%42%41%25%41%33%25%43%43%25%45%35%25%44%33%25%46%44_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%39%25%46%42%25%42%32%25%41%39%25%44%37%25%44%43%25%43%43%25%41%38%25%42%46%25%41%41%25%42%42%25%41%37%25%42%39%25%44%39%25%43%44%25%46%38%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%41%31%25%41%34%25%34%33%25%34%46%25%34%44%252C%25%44%36%25%44%30%25%43%39%25%42%44%25%42%31%25%43%46%25%44%32%25%42%35%25%43%39%25%46%41_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%43%46%25%44%46%25%43%39%25%43%46%25%44%30%25%43%32%25%42%44%25%46%30%25%44%36%25%42%31%25%44%33%25%41%41%25%43%44%25%46%38%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%42%43%25%43%33%25%43%34%25%46%45%25%43%39%25%46%41%25%42%42%25%45%45_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%44%39%25%42%43%25%44%32%25%43%30%25%44%36%25%44%33%25%41%45%25%43%37%25%41%45%25%42%42%25%43%41%25%44%36%25%42%31%25%44%33%25%41%41%25%42%46%25%41%41%25%42%42%25%41%37%25%33%41%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%42%41%25%41%41%25%42%35%25%41%36%25%43%44%25%46%38%25%42%41%25%45%43_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%43%43%25%45%43%25%43%39%25%42%44%25%42%39%25%46%41%25%42%43%25%43%41%25%43%46%25%43%32%25%44%34%25%44%38%25%41%31%25%42%45%25%42%39%25%44%39%25%43%44%25%46%38%25%41%31%25%46%41%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%25%41%31%25%42%46%252C%25%44%36%25%43%45%25%44%36%25%44%44%25%43%45%25%43%30%25%43%41%25%44%33_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%42%25%43%41%25%42%43%25%44%32%25%44%34%25%44%41%25%43%46%25%44%46%25%42%39%25%44%39%25%42%37%25%42%44%25%43%44%25%46%38%25%44%36%25%42%37%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%43%33%25%45%30%25%44%31%25%46%34%25%43%45%25%43%30%25%42%43%25%43%36%25%43%45%25%41%46_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%32%25%41%39%25%42%32%25%43%41%25%42%35%25%45%37%25%44%37%25%44%33%25%44%33%25%43%45%25%44%32%25%44%35%25%42%39%25%44%39%25%42%37%25%42%44%25%43%44%25%46%38%25%44%36%25%42%37%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%43%44%25%41%38%25%43%31%25%43%39%25%42%39%25%45%33%25%42%32%25%41%35_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%43%34%25%43%33%25%43%35%25%42%32%25%41%39%25%42%32%25%43%41%25%43%44%25%46%38%25%42%35%25%42%43%25%44%36%25%42%31%25%44%33%25%41%41%25%43%44%25%46%38%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%44%37%25%44%34%25%42%39%25%42%31%25%42%35%25%45%37%25%43%41%25%44%33%25%43%43%25%41%38_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%44%39%25%42%43%25%44%32%25%43%30%25%44%36%25%43%46%25%43%32%25%42%39%25%44%39%25%43%44%25%46%38%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%41%33%25%41%45%25%41%33%25%43%33%25%41%33%25%43%46%25%41%33%25%43%44%252C%25%44%34%25%43%36%25%42%38%25%41%31%25%42%35%25%45%37%25%44%30%25%43%35_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%43%43%25%41%39%25%43%39%25%42%44%25%42%42%25%45%31%25%44%33%25%45%39%25%43%30%25%44%36%25%42%33%25%41%31%25%41%31%25%42%45%25%42%39%25%44%39%25%43%44%25%46%38%25%41%31%25%46%41%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%25%41%31%25%42%46%252C%25%43%45%25%41%42%25%42%37%25%42%42%25%44%35%25%44%30%25%43%36%25%42%38_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%43%34%25%43%33%25%43%35%25%43%44%25%46%45%25%43%34%25%45%31%25%43%42%25%42%39%25%44%36%25%42%31%25%42%39%25%44%39%25%43%44%25%46%38%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%41%33%25%41%45%25%41%33%25%43%33%25%41%33%25%43%46%25%41%33%25%43%44%252C%25%43%42%25%45%43%25%43%34%25%46%45%25%43%43%25%45%35%25%44%33%25%46%44_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%42%25%42%37%25%43%37%25%46%32%25%42%39%25%46%41%25%42%43%25%43%41%25%43%41%25%44%36%25%42%42%25%46%41%25%42%39%25%44%39%25%43%44%25%46%38%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%41%31%25%41%34%25%34%33%25%34%46%25%34%44%252C%25%43%46%25%43%43%25%43%34%25%46%45%25%43%43%25%45%35%25%44%33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#include <stdio.h>
你打错了，只有有了这个头文件，你才能调用printf这个函数。
举报
C语言入门视频教程，带你进入编程世界的必修课-C语言
1 回答各位大神们，为什么不可这样printf（“x%%y=%d\n”， 1 ）；
1 回答有没有大神帮我看看printf那句为什么错了呀
2 回答大神们哪错了
4 回答大神们
1 回答大神们错在哪里
哪里有问题 还是 其他 有问题？
