I would like to ask if there are any affordable hotels near these stations of Shanghai Line 7

There are no cheap hotels at Changshu Road Station and Jing'an Temple Station;

I would like to recommend the ones near Zhaojiabang and Dong'an Road:

Motel 168 Thinking South Road Store (hotel chain) No. 113, Sinan Road Tel: 51703333

Hanting Express Dapuqiao Store (hotel chain) No. 128 Nantangbang Road Tel: 65659666

GreenTree Inn Dapuqiao Pu Express Hotel No. 92-3 Dapu Road Tel: 8008998998

Hanting Hotel Shaanxi South Road Branch (hotel chain) No. 233 Shaanxi South Road Tel: 54656633

GreenTree Inn Zhaojiabang Road Branch (Chain hotel) No. 100, Zhaojiabang Road Tel: 64722666

The above are all chain hotels, which are relatively cheap;

I would like to recommend you a guest house for veteran cadres (Qingsong) next to the station. Chengnan Building), No. 11, Lane 50, Dong'an Road, was recently renovated and meets your requirements; Tel: 64174853 64187070