Fork自 PaddlePaddle / Paddle
[Dy2Stat] 1. Fix bug of for-range stmts. 2. Support that step value is negative in for-range stmts (#29519) 1. Fix error in _build_cond_stmt of for-range stmts. 2. Support that step value is negative in for-range stmts 3. Fix code because of the diff between Py2 and Py3