杩欐槸鎴戝弬鍔犲叓鏈堟洿鏂版寫鎴樼殑绗?澶┿€傛椿鍔ㄨ鎯呮煡鐪嬶細鍏湀鏇存柊鎸戞垬澶у濂斤紝鎴戞槸褰煎哺鐨勭箒鑽ｐ煂革紝涓€涓潥淇″姫鍔涘彲浠ユ敼鍙樺懡杩愮殑鍓嶇馃懆馃徎鈥嶐煉伙紝濡傛灉浣犳湁骞稿啓鍑轰竴绡囨枃绔狅紝鑳藉緱鍒颁綘鐨勯潚鐫愶紝鎴戝緢骞歌繍~鏈郴鍒楁枃绔犻鍙戜簬鎺橀噾锛屽啓浣滀笉鏄撹浆杞斤紝璇疯幏寰楀啓鍓嶉潰鏉′欢璇彞鐨勬潈闄愶紝鏈枃鎴戜滑灏嗗涔犳潯浠惰鍙ュ湪鏈潵鐨凧avaScript銆傞€氳繃鏈枃锛屾偍灏嗘帉鎻′互涓嬪唴瀹癸細浠€涔堟槸鏉′欢璇彞鎵€璋撴潯浠惰鍙ュ氨鏄垽鏂槸鍚︽墽琛屾垨璺宠繃鏌愪簺鎸囧畾鐨勮鍙ュ潡銆傜畝鑰岃█涔嬶紝濡傛灉鎸囧畾琛ㄨ揪寮忕殑杩愮畻缁撴灉涓虹湡锛屽垯鎵ц鎸囧畾鐨勮鍙ュ潡锛涘鏋滆繍绠楃粨鏋滀负鍋囷紝鍒欒烦杩囨煇涓鍙ュ潡鎴栨墽琛屽叾浠栬鍙ュ潡銆備笅闈㈢殑浠ｇ爜濡備笅锛歩f(true){console.log('鏉′欢璇彞琚墽琛?)}涓婇潰鐨勪唬鐮佺洰鍓嶅彧鏄负浜嗗睍绀猴紝鏆傛椂涓嶉渶瑕佸幓鐞嗚В銆侸avaScript涓彁渚涚殑涓ょ鏉′欢璇彞濡備笅锛歩f...else璇彞switch璇彞if璇彞if璇彞鏄疛avaScript涓渶甯歌銆佹渶鍩烘湰鐨勬潯浠惰鍙ャ€俰f璇彞鍙堝彲浠ョ粏鍒嗕负浠ヤ笅鍑犵锛歩f璇彞if...else璇彞if...elseif...else璇彞if璇彞鏍规嵁琛ㄨ揪寮忕殑杩愮畻缁撴灉鍒ゆ柇鏄惁鎵ц鏌愪簺璇彞銆傝烦杩囪繖浜涜鍙ャ€傚叾璇硶缁撴瀯濡備笅锛歩f(鏉′欢琛ㄨ揪寮?{//褰撹〃杈惧紡涓虹湡鏃堕渶瑕佹墽琛岀殑璇彞鍧梷鏍规嵁涓婇潰鐨勮娉曠粨鏋勶紝鍙互寰楀嚭濡備笅娴佺▼鍥撅細if涓殑鏉′欢琛ㄨ揪寮忚鍙ヤ负鐪燂紝鍒欐墽琛屾寚瀹氱殑浠ｇ爜鍧楋紝鍚﹀垯璺冲嚭浠ｇ爜鍧楃殑鎵ц銆傜ず渚嬩唬鐮佸涓嬶細varx=10vary=9//鎵撳嵃xy涓殑鏈€澶у€糹f(x>y){console.log("鏈€澶у€间负x锛寈鐨勫€间负锛?+x)}if(xy)console.log("鏈€澶у€间负x锛寈鐨勫€间负锛?+x)//涔熷彲浠ュ啓鍦ㄤ竴琛屽鏋?xy){console.log("鏈€澶у€间负x锛寈鐨勫€间负锛?+x)}else{console.log("鏈€澶х殑鍊间负y锛寉鐨勫€间负锛?+y)}杩欐牱鍜屼笂闈㈢殑鍐欐硶鏄竴鑷寸殑锛屼唬鐮侀噺涔熷噺灏戜簡銆傚悓鏍凤紝濡傛灉鍑犱釜璇彞鍧椾腑鍙湁涓€涓鍙ワ紝鑺辨嫭鍙蜂篃鍙互鐪佺暐銆備唬鐮佸涓嬶細if(x>y)console.log("鏈€澶у€间负x锛寈鐨勫€间负锛?+x)elseconsole.log("鏈€澶у€间负y锛屽€间负yis:"+y)if...else璇彞涔熷彲浠ュ祵濂楋紝绀轰緥浠ｇ爜濡備笅锛歷arscore=88/***闇€姹?鍒嗘暟涓?00鍒嗘椂杈撳嚭->浣犲緱鍒版弧鍒?褰撳垎鏁板ぇ浜?5鏃惰緭鍑?>浣犵殑鍒嗘暟浼樼*褰撳垎鏁板皬浜?5澶т簬60鏃惰緭鍑?>浣犵殑鍒嗘暟濂?鍒嗘暟灏忎簬60鏃惰緭鍑?>浣犵殑鍒嗘暟涓嶅強鏍?褰撳垎鏁颁笉鍙婃牸鏃惰緭鍑烘垚缁╀负0->浣犵殑鎴愮哗瀹為檯涓婃槸0*/if(score>=60){if(score===100){console.log('浣犲緱鍒颁簡婊″垎')}else{if(score>85){console.log('浣犵殑鎴愮哗寰堝ソ')}else{console.log('浣犵殑鎴愮哗寰堝ソ')}}}else{if(score===0){console.log('浣犵殑鎴愮哗绔熺劧鏄?鍒?)}else{console.log('浣犵殑鎴愮哗涓嶅強鏍?)}}涓婇潰浠ｇ爜鐨勬墽琛岃繃绋嬪涓嬶細鏍规嵁娴佺▼鍥撅紝c涓€涓潪甯告竻妤氱殑鐪嬪埌浠ｇ爜鐨勬墽琛屾祦绋嬫槸浠€涔堟牱瀛愮殑銆備笂闈㈡垜浠娇鐢ㄧ殑elseif璇彞浣跨敤浜唅f...else宓屽鐨勪唬鐮侊紝浠ｇ爜缁撴瀯澧炲姞鐨勫鏉傚害涓嶈锛岃€屼笖闃呰璧锋潵闈炲父鍚冨姏銆傚ぇ澶氭暟鎯呭喌涓嬶紝if...else宓屽缁撴瀯鐨勪唬鐮佸彲浠ラ€氳繃elseif璇彞鏀瑰啓銆俥lseif璇彞鏄湪鍘熸潵鐨刬f...else璇彞鍩虹涓婂鍔犱簡涓€涓猠lseif璇彞锛屽叾璇硶缁撴瀯濡備笅锛歩f(鏉′欢琛ㄨ揪寮?){//褰撴潯浠惰〃杈惧紡1涓虹湡鏃讹紝浠ｇ爜鍧椾负executed}elseif(鏉′欢琛ㄨ揪寮?){//褰撴潯浠惰〃杈惧紡2涓虹湡鏃舵墽琛岀殑浠ｇ爜鍧梷elseif(鏉′欢琛ㄨ揪寮?){//褰撴潯浠惰〃杈惧紡3涓虹湡鏃舵墽琛岀殑浠ｇ爜鍧梷elseif(鏉′欢琛ㄨ揪寮廚){//褰撴潯浠惰〃杈惧紡N涓虹湡鏃讹紝灏辨槸瑕佹墽琛岀殑浠ｇ爜鍧梷else{//浠ヤ笂浠ｇ爜鍧楅兘涓嶆弧瓒硙鏍规嵁涓婇潰鐨勮娉曠粨鏋勶紝鍙互鐢诲嚭濡備笅娴佺▼鍥撅細鐜板湪鎴戜滑鍙互浣跨敤elseif璇彞鏀瑰啓涓婇潰鐨勪唬鐮侊細varscore=88/***瑕佹眰*鍒嗘暟涓?00鏃惰緭鍑?>浣犳弧鍒?鍒嗘暟澶т簬85鏃惰緭鍑?>浣犵殑鍒嗘暟浼樼*褰撳垎鏁板皬浜?5鍒嗗ぇ浜?0鍒嗘椂杈撳嚭->鍝焨rscoreisgood*褰撳垎鏁板皬浜?0鍒嗘椂杈撳嚭->浣犵殑鍒嗘暟涓嶅ソ*褰撳垎鏁颁负0鍒嗘椂杈撳嚭->浣犵殑鍒嗘暟瀹為檯涓婃槸0鍒?/if(score===100){console.log('浣犲緱浜嗘弧鍒?)}elseif(score>85){console.log('浣犵殑鎴愮哗寰堝ソ')}elseif(score>=60){console.log('浣犵殑鎴愮哗寰堝ソ')}elseif(score===0){console.log('浣犵殑鍒嗘暟鏄?')}else{console.log('浣犵殑涓嶅強鏍兼垚缁?)}鍙互鏄庢樉鐪嬪嚭浣跨敤elseif璇彞鍐欑殑浠ｇ爜鏇存墎骞筹紝鏇存槗浜庨槄璇汇€俿witch璇彞switch璇彞涔熸槸JavaScript涓殑鏉′欢璇彞銆傚噯纭殑璇达紝灞炰簬JavaScript涓殑switch璇彞锛屽拰if璇彞闈炲父鐩镐技銆傚叾璇硶缁撴瀯濡備笅锛歴witch(鏉′欢琛ㄨ揪寮?{casevalue1://婊¤冻value1鏃舵墽琛岀殑浠ｇ爜break//缁撴潫switch璇彞鐨勬墽琛宑asevalue2://婊¤冻value2鏃舵墽琛岀殑浠ｇ爜break...casevalueN://鍖归厤鍒皏alueN鏃舵墽琛岀殑浠ｇ爜breakdefault://褰撲笂闈㈢殑鍊间笉鍖归厤鏃讹紝瑕佹墽琛岀殑浠ｇ爜鍧梷鏍规嵁涓婇潰鐨勮娉曠粨鏋勶紝鍙互鐢诲嚭濡備笅娴佺▼鍥撅細鎵ц浣跨敤鏉′欢琛ㄨ揪寮忕殑switch璇彞鐨勭粨鏋滐紝涓巆ase涓殑鍊艰繘琛屾瘮杈冿紝濡傛灉婊¤冻鍒欐墽琛岀浉搴旂殑璇彞鍧椼€俤efault琛ㄧず濡傛灉浠ヤ笂閮戒笉婊¤冻锛屽垯鎵ц璇彞鍧椼€傜幇鍦ㄦ垜浠殑闇€姹傛槸姣忓ぉ鏈夊浐瀹氱殑涓€椁愶紝閫氳繃绋嬪簭鏉ュ疄鐜般€傜ず渚嬩唬鐮佸涓嬶細//琛ㄧず鏄熸湡鍑爒ardate=1/***鏍规嵁浠婂ぉ鐨勬棩鏈熷喅瀹氬悆浠€涔?/switch(date){case1:console.log("浠婂ぉ鍚冪儰楦?);浼戞伅;case2:console.log("浠婂ぉ鍚冮叡鐗涜倝");浼戞伅;case3:console.log("浠婂ぉ鍚冭荆瀛愰浮");浼戞伅;case4:console.log("浠婂ぉ鍚冪孩鐑ц倝");浼戞伅;case5:console.log("浠婂ぉ鍚冨湡璞嗗拰楦″潡");浼戞伅;case6:console.log("浠婂ぉ鍚冪伀閿?);浼戞伅;case7:console.log("浠婂ぉ鍚冨鍗?);浼戞伅;default:console.log("浣犵殑杈撳叆鏈夎");break;}//鏈€缁堢粨鏋?/浠婂ぉ鍚冧簡鐑ら腑break鍏抽敭瀛楁垜浠湪switch璇彞涓娇鐢ㄤ簡break鍏抽敭瀛楋紝浣嗕笉鏄繀椤荤殑锛屽彲浠ョ渷鐣ュ瓧绗︺€備絾鏄鏋滅渷鐣ヨ繖涓叧閿瓧锛屽氨浼氬嚭鐜颁笉鍚岀殑缁撴灉銆傜ず渚嬩唬鐮佸涓嬶細//琛ㄧず鏄熸湡鍑爒ardate=1switch(date){case1:console.log("浠婂ぉ鍚冪儰楦?);//鐪佺暐涓柇锛沜ase2:console.log("浠婂ぉ鍚冮叡鐗涜倝");浼戞伅;case3:console.log("浠婂ぉ鍚冭荆瀛愰浮");浼戞伅;case4:console.log("浠婂ぉ鍚冪孩鐑ц倝");浼戞伅;case5:console.log("浠婂ぉ鍚冨湡璞嗛浮鍧?);浼戞伅;case6:console.log("浠婃棩鐏攨");浼戞伅;case7:console.log("浠婂ぉ鍚冨鍗?);浼戞伅;default:console.log("浣犵殑杈撳叆鏈夎");break;}//鎵ц缁撴灉//浠婂ぉ鍚冪儰楦?/浠婂ぉ鍚冮叡鐗涜倝銆傛垜浠彂鐜板湪鐪佺暐浜哹reak鍏抽敭瀛椾箣鍚庯紝case1鐨勮鍙ュ潡鐨勬墽琛屽苟娌℃湁缁撴潫锛屾湁鐨勭户缁墽琛宑ase2鐨勮鍙ュ潡銆傚叾瀹炲湪switch璇彞涓紝鍙娌℃湁閬囧埌break鍏抽敭瀛楋紝瀹冨氨浼氱户缁墽琛屼笅鍘伙紝涓嶇涓嬮潰鐨勬潯浠舵槸鍚︽弧瓒筹紝鐩村埌switch璇彞鎵ц瀹屾瘯銆俤efault璇彞鍦╯witch璇彞鐨勬爣鍑嗚娉曠粨鏋勪腑锛屾湁涓€涓猟efault璇彞锛屼竴鑸斁鍦╯witch璇彞鐨勬湯灏俱€傚畠鐨勪綔鐢ㄦ槸褰揷ase鍊间腑鐨勫€奸兘涓嶆弧瓒虫潯浠惰〃杈惧紡鏃讹紝灏变細鎵ц璇ヨ鍙ャ€備絾瀹為檯涓婏紝default璇彞涓嶉渶瑕佹斁鍦ㄦ渶鍚庯紝鍙互鏀惧湪浠讳綍浣嶇疆銆傜ず渚嬩唬鐮佸涓嬶細vardate=1switch(date){case1:console.log("浠婂ぉ鍚冪儰楦?);浼戞伅;case2:console.log("浠婂ぉ鍚冮叡鐗涜倝");浼戞伅;default:console.log("浣犵殑杈撳叆鏈夎");浼戞伅;case3:console.log("浠婂ぉ鍚冭荆瀛愰浮");浼戞伅;case4:console.log("浠婂ぉ鍚冪孩鐑ц倝");浼戞伅;case5:console.log("浠婂ぉ鍚冨湡璞嗗拰楦″潡");浼戞伅;case6:console.log("浠婂ぉ鍚冪伀閿?);浼戞伅;case7:console.log("浠婂ぉ鍚冨鍗?);break;}//鏈€缁堢粨鏋?/浠婂ぉ鍚冪儰楦粠浠ｇ爜涓彲浠ョ湅鍑猴紝榛樿璇彞鐨勪綅缃笉褰卞搷鎴戜滑鐨勭粨鏋滐紝浣嗘槸涓轰簡浠ｇ爜鐨勫彲璇绘€э紝灏介噺鏀惧湪鏈€鍚庛€傛€荤粨棰勮锛氬湪涓嬩竴绡囨枃绔犱腑锛屾垜浠互鍚庝細瀛︿範JavaScript涓殑寰幆璇彞銆傜簿褰╂枃绔犮€愪粠鍓嶇瀛﹀墠绔€?5-JavaScript涓?5涓繍绠楃璇﹁В銆愪粠鍓嶇瀛﹀墠绔€?4-鐞嗚ВJavaScript涓殑鍩烘湰鏁版嵁绫诲瀷銆愪粠鍓嶇瀛﹀墠绔€?3-杩欐椂闂存垜鐞嗚ВJavaScript涓殑鍙橀噺銆愪粠闆跺紑濮嬪鍓嶇銆?2-JavaScript璇嶆硶缁撴瀯銆愪粠闆跺紑濮嬪鍓嶇銆?1-浠€涔堟槸JavaScript
