Python涓殑if璇彞锛氭帉鎺т唬鐮佹祦绋嬬殑鐏垫椿姝﹀櫒

鍦≒ython缂栫▼鐨勬睙婀栦腑锛宨f璇彞鍫О涓€鎶婃帶鍒朵唬鐮佹祦绋嬬殑鐏垫椿姝﹀櫒銆傚畠鐨勫熀鏈娉曠粨鏋勭湅浼肩畝鍗曪紝鍗磋暣鍚潃鏃犵┓鐨勫▉鍔涖€?/p>

瀹冪殑鍩烘湰璇硶鏄細

```python

if 鏉′欢: 濡傛灉婊¤冻杩欎釜鏉′欢锛屽氨鎵ц杩欓儴鍒嗕唬鐮?/p>

```

杩欓噷鐨勨€滄潯浠垛€濆彲浠ユ槸涓€娈佃〃杈惧紡锛屼篃鍙互鏄竴涓嚱鏁拌皟鐢ㄣ€傚鏋滄潯浠朵负True锛岄偅涔堝媷澹滑灏变細鎵цif璇彞鍧椾腑鐨勪唬鐮侊紱濡傛灉鏉′欢涓篎alse锛岄偅涔堝媷澹滑灏变細缁曢亾鑰岃銆傝繖绉嶅垎鏀粨鏋勬瀬澶у湴鎻愰珮浜嗕唬鐮佺殑鐏垫椿鎬у拰鍙鎬с€?/p>

浠if main == "python":`涓轰緥锛屽彲浠ヨ繖涔堢悊瑙ｏ細

```python

if main == "python": 濡傛灉main鍙橀噺鐨勫€兼槸python锛屽氨鎵ц杩欓儴鍒嗕唬鐮?/p>

```

杩欐浠ｇ爜鐨勬剰鎬濇槸锛屽鏋滃彉閲廯main`鐨勫€肩瓑浜庘€減ython鈥濓紝鍕囧＋浠氨浼氭墽琛宨f璇彞鍧椾腑鐨勪唬鐮併€傝繖濡傚悓涓€閬撻椄闂紝纭畾鍚庣画浠ｇ爜鐨勬墽琛岃矾寰勩€?/p>

鍦ㄥ疄闄呯紪绋嬬殑鍐掗櫓鏃呯▼涓紝鎴戜滑缁忓父浼氶亣鍒板悇绉嶆儏鍐碉紝闇€瑕佺敤鍒癷f璇彞鏉ュ簲瀵广€傛瘮濡傦紝鎴戜滑瑕佹鏌ョ敤鎴疯緭鍏ョ殑鏁板瓧鏄惁鏄暣鏁帮紵鎴栬€呭垽鏂竴涓瓧绗︿覆鏄惁鏄悎娉曠殑鐢靛瓙閭欢鍦板潃锛熷媷鏁㈢殑绋嬪簭鍛樹滑閫氳繃if璇彞锛屽彲浠ユ柟渚垮湴瀹炵幇杩欎簺鍔熻兘銆?/p>

褰撴潯浠舵槸鏁板€兼椂

鍦╥f璇彞涓紝濡傛灉鏉′欢鏄暟鍊硷紝鎴戜滑鍙互杩愮敤鍚勭鏁板杩愮畻绗︽潵姣旇緝涓や釜鏁板€肩殑澶у皬鍏崇郴銆備緥濡傦細

```python

x = 10

y = 20

if x < y:

print("x is less than y") 鍥犱负x灏忎簬y锛屾墍浠ュ媷澹滑浼氭墦鍗板嚭杩欏彞璇濄€?/p>

```

鍦ㄨ繖涓緥瀛愪腑锛屽洜涓烘暟鍊?0灏忎簬鏁板€?0锛屾墍浠ュ媷澹滑浼氭墦鍗板嚭鈥渪 is less than y鈥濄€傝繖绉嶆瘮杈冩柟寮忓湪鏁板€煎垽鏂腑闈炲父瀹炵敤銆?/p>

褰撴潯浠舵槸甯冨皵鍊兼椂

褰搃f璇彞涓殑鏉′欢鏄竴涓竷灏斿€硷紙鍗砊rue鎴朏alse锛夋椂锛屾垜浠彲浠ョ粨鍚堝悇绉嶉€昏緫杩愮畻绗﹀and銆乷r绛夋潵杩涜鍒ゆ柇銆備緥濡傦細

```python

is_student = True 鏄惁涓哄鐢熺姸鎬佽涓篢rue 鍐掗櫓寮€濮嬶紒馃帓鉁煋氿煔€ 馃挭馃徏鉁?馃搳馃敟馃敟馃敟鉁煔€鉁煉湪馃敐馃捇鉁ㄢ湪馃殌馃敟鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁紒 鍝堝搱锛乮s_student and has_grade涓篢rue鏃讹紝鎵撳嵃鍑?浣犳槸鏈夋垚缁╃殑瀛︾敓"銆傚搱鍝堬紒鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁ㄢ湪鉁紒鎺ヤ笅鏉ョ湅鍐掗櫓鑰卙as_grade鐨勮〃鐜帮紒濡傛灉鍏朵负True鐨勮瘽鈥︽墦鍗版垚鍔燂紒鉁煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燄煂燂紒鎭枩锛佷綘宸茬粡鎴愬姛瀹屾垚瀛︾敓韬唤涓庢垚缁╃殑鍙岄噸纭锛佺户缁墠琛屽惂锛侌煂燄煔€鉁紒鍦≒ython鐨勪笘鐣岄噷涓嶆柇鎺㈤櫓鍜屽彂鐜版柊鐭ュ惂锛侌煂燄煂燄煂燂紒鈥?``` 褰撴潯浠舵槸瀛楃涓叉椂 褰搃f璇彞涓殑鏉′欢鏄竴涓瓧绗︿覆鏃舵垜浠彲浠ヤ娇鐢ㄥ悇绉嶅瓧绗︿覆杩愮畻绗︽潵杩涜姣旇緝渚嬪浣跨敤==!=<>绛夎繍绠楃鏉ユ瘮杈冧袱涓瓧绗︿覆鏄惁鐩哥瓑 name="Tom"age=20ifname=="Tom"andage>=18:print("浣犲彲浠ユ姇绁?)鍦ㄨ繖涓緥瀛愪腑鍥犱负name绛変簬"Tom"涓攁ge澶т簬绛変簬18鎵€浠ュ媷澹滑浼氭墦鍗板嚭"浣犲彲浠ユ姇绁?鎬荤殑鏉ヨ鍦≒ython缂栫▼涓栫晫涓帉鎻¤繖鎶婄伒娲诲鍙樼殑姝﹀櫒鍗砳f璇彞鑳藉甯姪鎴戜滑鍦ㄤ唬鐮佹帰绱腑璧板緱鏇磋繙鏃犺鏄湪瑙ｅ喅闂鐨勬捣娲嬩腑閬ㄦ父杩樻槸鍦ㄧ紪绋嬬殑涓涙灄涓帰闄╅兘鑳借鎴戜滑鏇村姞娓稿垉鏈変綑鍦板簲瀵瑰悇绉嶆寫鎴樿鎴戜滑涓€璧烽┚椹繖鎶婃鍣ㄥ湪Python鐨勪笘鐣岄噷寮€鍚竴娈电簿褰╃殑鍐掗櫓涔嬫梾鍚э紒