in case和in case of 意思相同么？

in case 后接从句:以防万一;万一 In case that it rains, you'd better take an umbrella. 以防下雨,你最好带上一把雨伞。 in case of + sth: 若某事发生;假如 In case of fire, you must keep calm and call 119. 假如遇上火警,你必须保持镇静及打119报火警。