C文件操作示例 #includes stdio.h> #include<string. h> int mainO FILE fp=fopen("test. txt", w+t); printf( erroe on openning!\n return-1 char strs/Ir This is the test line fwrite(str, sizeof(char), strlen(str), p) fpr printf(p, print=%/os",str)C文件操作示例 „ #include< #include<stdio.h stdio.h> „ #include< #include<string.h string.h> „ int main() „ { „ FILE *fp=fopen("test.txt","w+t fopen("test.txt","w+t"); „ if(!fp) „ { „ printf("erroe printf("erroe on openning! openning!\n"); „ return -1; „ } „ char * str="This is the test line"; ="This is the test line"; „ fwrite(str,sizeof(char),strlen(str),fp fwrite(str,sizeof(char),strlen(str),fp); „ fprintf(fp,"print fprintf(fp,"print= %s",str);