編程如何輸入圓周率

㈠ 濡備綍鐢≒ython璁＄畻鍦嗗懆鐜囅錛

Python璁＄畻鍦嗙殑闈㈢Н鍜屽懆闀垮強榪囩▼濡備笅錛

python澶嶅埗浠ｇ爜import math錛宒ef calculate_circle錛坮adius錛夛細璁＄畻鍦嗙殑闈㈢Нarea= math.pi*錛坮adius**2錛夈

璁＄畻鍦嗙殑鍛ㄩ暱circumference=2* math.pi* radius錛宺eturn area錛宑ircumference銆

嫻嬭瘯鍑芥暟r=5#鍋囪懼崐寰勪負5錛宎rea錛宑ircumference= calculate_circle錛坮錛夈

print錛堚滃崐寰勪負{}鐨勫渾鐨勯潰縐鏄錛歿錛.2f}鈥.format錛坮錛宎rea錛夛級銆

print錛堚滃崐寰勪負{}鐨勫渾鐨勫懆闀挎槸錛歿錛.2f}鈥.format錛坮錛宑ircumference錛夛級銆

3銆佷嬌鐢ㄥ懆闀胯＄畻

濡傛灉宸茬粡鐭ラ亾鍦嗙殑鍛ㄩ暱C錛屽彲浠ラ氳繃灝嗗叾闄や互2蟺寰楀埌鍗婂緞錛岀劧鍚庝嬌鐢ㄤ笂榪板叕寮忚＄畻闈㈢Н銆傞潰縐鐨勮＄畻鍏寮忔槸C²/錛4蟺錛夈

4銆佷嬌鐢ㄩ潰縐璁＄畻

濡傛灉宸茬粡鐭ラ亾鍦嗙殑闈㈢НA錛屽彲浠ラ氳繃灝嗗叾闄や互蟺騫跺彇騫蟲柟鏍瑰緱鍒板崐寰勶紝鐒跺悗浣跨敤涓婅堪鍏寮忚＄畻鍛ㄩ暱銆傚懆闀跨殑璁＄畻鍏寮忔槸2鈭氾紙A/蟺錛夈

5銆佷嬌鐢ㄤ笁瑙掑艦鍐呭垏鍦嗚＄畻

濡傛灉鐭ラ亾涓庡渾鍐呭垏鐨勭瓑杈逛笁瑙掑艦鐨勮竟闀縜錛屽彲浠ラ氳繃灝哸闄や互鈭3寰楀埌鍦嗙殑鐩村緞錛岀劧鍚庝嬌鐢ㄤ笂榪板叕寮忚＄畻闈㈢Н鍜屽懆闀褲傞潰縐鐨勮＄畻鍏寮忔槸錛坅/鈭3錛²蟺/4錛屽懆闀跨殑璁＄畻鍏寮忔槸a/鈭3脳蟺銆