[英]Remove text from string after a certain character in C
I am reading lines from a file, the lines look like this: 我正在从文件中读取行,这些行看起来像这样:
89f81a03eb30a03c8708dde38cf:000391716
The thing is: I want to remove everything after the :
(including the :
). 问题是:我想以后删除一切
:
(包括:
)。 I tried everything I could find online but they seem to use const char
and the lines are char
pointers. 我尝试了我可以在网上找到的所有内容,但它们似乎使用了
const char
而且这些行是char
指针。
You can use strchr
: 你可以使用
strchr
:
char str[] = "89f81a03eb30a03c8708dde38cf:000391716";
char *ptr;
ptr = strchr(str, ':');
if (ptr != NULL) {
*ptr = '\0';
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.