Loops 如何制作for循环以使用flifter从firebase获取链接?
我想要一个for循环,它给出一个每次增加一的数字。 差不多Loops 如何制作for循环以使用flifter从firebase获取链接?,loops,flutter,google-cloud-firestore,Loops,Flutter,Google Cloud Firestore,我想要一个for循环,它给出一个每次增加一的数字。 差不多 for (int i; i > 0; i <= 4){ var link = snapshot.data.documents[i].data['Link']; var uploader = snapshot.data.documents[i].data['Uploader']; var likes = snapshot.data.documents[i].data['Like
for (int i; i > 0; i <= 4){
var link = snapshot.data.documents[i].data['Link'];
var uploader = snapshot.data.documents[i].data['Uploader'];
var likes = snapshot.data.documents[i].data['Likes'];
.....
and then i = i++
}.
for(int i;i>0;i如果您想要一个基本for循环,这应该可以:
for (int i=1; i <= 4; i++) { // 1,2,3,4
var link = snapshot.data.documents[i].data['Link'];
var uploader = snapshot.data.documents[i].data['Uploader'];
var likes = snapshot.data.documents[i].data['Likes'];
.....
//and then i = i++ // don't need this
}.
for(int i=1;我很感谢,这应该会在每次添加1到i
,直到,对吗?它不会在每次有链接时重复,它只会重复一次。