x
y=0
x==y
setequal(x,y)
y=integer(0)
x==y
setequal(x,y)
一般用setequal( ),请知悉
#include <stdio.h>#include <string.h>
int main()
{
char s[100]
FILE *fp1, *fp2
fp1 = fopen("in.txt", "r")
fp2 = fopen("out.txt", "w")
if(fp1 == NULL || fp2 == NULL) return -1
while(~fscanf(fp1, "%s", s))
if(strchr(s, '.')) fprintf(fp2, "%s ", s)
fcloseall()
rename("in.txt", "out.txt")
return 0
}
Interger类的类方法parseInt(String a)可以将String类型转化为int类型 String类的类方法valueOf(int s)可以将int类型转化为String类型,例如: String s="123"int r=456; int a= Integer.parseInt(s)String b=String.valueOf(r)