买币
行情
现货
策略
合约
返佣
福利
Launchpool
登录
注册
简体中文
|
KSM/USDT
30.54
≈ 30.54
涨幅
+ 0.00%
24H最低价
0
24H最高价
0
24H成交量
0 KSM
自选
USDT
DOGE
TUSD
交易对
最新价
涨幅
BTC / USDT
0.00
+ 0.00 %
ETH / USDT
0.00
+ 0.00 %
DAI / USDT
0.0000
+ 0.00 %
1INCH / USDT
0.0000
+ 0.00 %
AAVE / USDT
0.00
+ 0.00 %
ACE / USDT
0.0000
+ 0.00 %
ACH / USDT
0.00000
+ 0.00 %
ADM / USDT
0.000000
+ 0.00 %
AGLD / USDT
0.000
+ 0.00 %
AIT / USDT
0.00000
+ 0.00 %
ALICE / USDT
0.000
+ 0.00 %
ALT / USDT
0.00000
+ 0.00 %
AMP / USDT
0.000000
+ 0.00 %
ANKR / USDT
0.00000
+ 0.00 %
APE / USDT
0.000
+ 0.00 %
API3 / USDT
0.000
+ 0.00 %
ARB / USDT
0.0000
+ 0.00 %
ARPA / USDT
0.00000
+ 0.00 %
ATA / USDT
0.0000
+ 0.00 %
ATOM / USDT
0.000
+ 0.00 %
AVAX / USDT
0.00
+ 0.00 %
AUDIO / USDT
0.0000
+ 0.00 %
AXL / USDT
0.0000
+ 0.00 %
AXS / USDT
0.00
+ 0.00 %
BABYBONK / USDT
0.00000000000000
+ 0.00 %
BAND / USDT
0.000
+ 0.00 %
BAT / USDT
0.0000
+ 0.00 %
BCH / USDT
0.0
+ 0.00 %
BDP / USDT
0.0000
+ 0.00 %
BEL / USDT
0.0000
+ 0.00 %
BIGTIME / USDT
0.000000
+ 0.00 %
BLUR / USDT
0.0000
+ 0.00 %
BLZ / USDT
0.0000
+ 0.00 %
BNB / USDT
0.0
+ 0.00 %
BOME / USDT
0.000000
+ 0.00 %
BONK / USDT
0.00000000
+ 0.00 %
BPX / USDT
0.0000
+ 0.00 %
BONE / USDT
0.0000
+ 0.00 %
C98 / USDT
0.0000
+ 0.00 %
CAKE / USDT
0.000
+ 0.00 %
CELR / USDT
0.00000
+ 0.00 %
CEL / USDT
0.0000
+ 0.00 %
CHR / USDT
0.0000
+ 0.00 %
CHZ / USDT
0.0000
+ 0.00 %
COMP / USDT
0.00
+ 0.00 %
COTI / USDT
0.0000
+ 0.00 %
CRV / USDT
0.0000
+ 0.00 %
CTEX / USDT
0.000000
+ 0.00 %
CVX / USDT
0.000
+ 0.00 %
DATA / USDT
0.00000
+ 0.00 %
DOGE / USDT
0.00000
+ 0.00 %
DOT / USDT
0.000
+ 0.00 %
DYDX / USDT
0.000
+ 0.00 %
EDT / USDT
0.00000
+ 0.00 %
EGLD / USDT
0.00
+ 0.00 %
ENA / USDT
0.000
+ 0.00 %
ENJ / USDT
0.0000
+ 0.00 %
ETC / USDT
0.00
+ 0.00 %
EVEAI / USDT
0.0000
+ 0.00 %
FIL / USDT
0.000
+ 0.00 %
FLOKI / USDT
0.00000000
+ 0.00 %
FTM / USDT
0.0000
+ 0.00 %
FTN / USDT
0.0000
+ 0.00 %
FTT / USDT
0.0000
+ 0.00 %
GALA / USDT
0.00000
+ 0.00 %
GMT / USDT
0.0000
+ 0.00 %
GMX / USDT
0.00
+ 0.00 %
GNO / USDT
0.0
+ 0.00 %
GNS / USDT
0.000
+ 0.00 %
GROK / USDT
0.000000
+ 0.00 %
GRT / USDT
0.0000
+ 0.00 %
HMT / USDT
0.0000
+ 0.00 %
HOT / USDT
0.000000
+ 0.00 %
HUGE / USDT
0.0000000
+ 0.00 %
ID / USDT
0.00000
+ 0.00 %
IMX / USDT
0.0000
+ 0.00 %
IOTX / USDT
0.00000
+ 0.00 %
JASMY / USDT
0.000000
+ 0.00 %
JTO / USDT
0.0000
+ 0.00 %
JUP / USDT
0.0000
+ 0.00 %
KSM / USDT
30.54
+ 0.00 %
LDO / USDT
0.000
+ 0.00 %
LINK / USDT
0.000
+ 0.00 %
LRC / USDT
0.0000
+ 0.00 %
LTC / USDT
0.00
+ 0.00 %
MANA / USDT
0.0000
+ 0.00 %
MANTA / USDT
0.00000
+ 0.00 %
MFER / USDT
0.0000
+ 0.00 %
MICE / USDT
0.00000
+ 0.00 %
MINA / USDT
0.000
+ 0.00 %
MKR / USDT
0
+ 0.00 %
MNT / USDT
0.0000
+ 0.00 %
MOBILE / USDT
0.000000
+ 0.00 %
MUBI / USDT
0.000000
+ 0.00 %
NAVX / USDT
0.00000
+ 0.00 %
NEAR / USDT
0.000
+ 0.00 %
NEXO / USDT
0.000
+ 0.00 %
OMG / USDT
0.000
+ 0.00 %
ONDO / USDT
0.00000
+ 0.00 %
ONE / USDT
0.00000
+ 0.00 %
OP / USDT
0.000
+ 0.00 %
ORDI / USDT
0.000
+ 0.00 %
PAXG / USDT
0.0
+ 0.00 %
ORT / USDT
0.000000
+ 0.00 %
PEOPLE / USDT
0.00000
+ 0.00 %
PEPE / USDT
0.00000000
+ 0.00 %
PORT3 / USDT
0.00000
+ 0.00 %
PYTH / USDT
0.0000
+ 0.00 %
QNT / USDT
0.0
+ 0.00 %
RATS / USDT
0.00000000
+ 0.00 %
RDNT / USDT
0.0000
+ 0.00 %
SAND / USDT
0.0000
+ 0.00 %
SATS / USDT
0.0000000000
+ 0.00 %
SHIB / USDT
0.00000000
+ 0.00 %
SLERF / USDT
0.0000
+ 0.00 %
SNX / USDT
0.000
+ 0.00 %
SOL / USDT
0.00
+ 0.00 %
SSV / USDT
0.00
+ 0.00 %
SUSHI / USDT
0.000
+ 0.00 %
STRK / USDT
0.000
+ 0.00 %
SXP / USDT
0.0000
+ 0.00 %
TIA / USDT
0.0000
+ 0.00 %
TLM / USDT
0.00000
+ 0.00 %
TRX / USDT
0.00000
+ 0.00 %
TNSR / USDT
0.0000
+ 0.00 %
TRAC / USDT
0.000
+ 0.00 %
TROLL / USDT
0.00000000000
+ 0.00 %
TWT / USDT
0.0000
+ 0.00 %
TURT / USDT
0.00000
+ 0.00 %
TUSD / USDT
0.0000
+ 0.00 %
UNI / USDT
0.000
+ 0.00 %
USDC / USDT
0.0000
+ 0.00 %
VCNT / USDT
0.0000
+ 0.00 %
VET / USDT
0.00000
+ 0.00 %
WIF / USDT
0.0000
+ 0.00 %
WLD / USDT
0.000
+ 0.00 %
WOO / USDT
0.0000
+ 0.00 %
XAI / USDT
0.0000
+ 0.00 %
XEC / USDT
0.00000000
+ 0.00 %
XLM / USDT
0.0000
+ 0.00 %
XPET / USDT
0.0000
+ 0.00 %
XPC / USDT
0.00000000
+ 0.00 %
XTZ / USDT
0.000
+ 0.00 %
YGG / USDT
0.0000
+ 0.00 %
ZEC / USDT
0.00
+ 0.00 %
ZIL / USDT
0.00000
+ 0.00 %
ULAM / USDT
0.00000
+ 0.00 %
CEEK / USDT
0.00000
+ 0.00 %
CRO / USDT
0.00000
+ 0.00 %
DC / USDT
0.0000000
+ 0.00 %
FXS / USDT
0.000
+ 0.00 %
ALPHA / USDT
0.00000
+ 0.00 %
BAKE / USDT
0.0000
+ 0.00 %
BNX / USDT
0.0000
+ 0.00 %
CTK / USDT
0.0000
+ 0.00 %
HOOK / USDT
0.0000
+ 0.00 %
SFP / USDT
0.0000
+ 0.00 %
MASK / USDT
0.000
+ 0.00 %
RACA / USDT
0.0000000
+ 0.00 %
MAGA / USDT
0.0000000
+ 0.00 %
ICBX / USDT
0.0000000
+ 0.00 %
WUSD / USDT
0.0000
+ 0.00 %
BRTR / USDT
0.000000
+ 0.00 %
ARMA / USDT
0.0000
+ 0.00 %
FFF / USDT
0.0000
+ 0.00 %
FET / USDT
0.000
+ 0.00 %
HOPPY / USDT
0.000000000
+ 0.00 %
MEW / USDT
0.000000
+ 0.00 %
G / USDT
0.00000
+ 0.00 %
RADX / USDT
0.00000000
+ 0.00 %
XG / USDT
0.0000
+ 0.00 %
RENDER / USDT
0.000
+ 0.00 %
BTF / USDT
0.0000
+ 0.00 %
FWC / USDT
0.00000000000000
+ 0.00 %
BCCOIN / USDT
0.0000
+ 0.00 %
ZETA / USDT
0.0000
+ 0.00 %
YOZI / USDT
0.000000
+ 0.00 %
GST / USDT
0.00
+ 0.00 %
FNS / USDT
0.0000
+ 0.00 %
HAN / USDT
0.000000
+ 0.00 %
POL / USDT
0.0000
+ 0.00 %
AVACN / USDT
0.0000000
+ 0.00 %
GDV / USDT
0.0000000
+ 0.00 %
WYZ / USDT
0.0000
+ 0.00 %
W3LT / USDT
0.000
+ 0.00 %
BRC100 / USDT
0.0000
+ 0.00 %
JOSE / USDT
0.00000
+ 0.00 %
PEPA / USDT
0.00000
+ 0.00 %
HF / USDT
0.00000
+ 0.00 %
FTR / USDT
0.0000
+ 0.00 %
POUPE / USDT
0.0000000
+ 0.00 %
HANEP / USDT
0.00
+ 0.00 %
HERB / USDT
0.0000
+ 0.00 %
ICE / USDT
0.000000
+ 0.00 %
CROW / USDT
0.0000
+ 0.00 %
NEIRO / USDT
0.0000
+ 0.00 %
LULU / USDT
0.0000
+ 0.00 %
CAT / USDT
0.000000000
+ 0.00 %
KRD / USDT
0.00000
+ 0.00 %
PTH / USDT
0.00000
+ 0.00 %
KANGO / USDT
0.00000000
+ 0.00 %
OSCAR / USDT
0.00000
+ 0.00 %
JRRY / USDT
0.0000000000
+ 0.00 %
KYRO / USDT
0.0000000
+ 0.00 %
KEIRO / USDT
0.00000000
+ 0.00 %
ARTMS / USDT
0.000000
+ 0.00 %
图表
Trading View
深度图
订单簿
小数位数
0.01
价格
数量 (KSM)
累计 (KSM)
32.9000
2.1768
772.9527
32.8200
23.4496
770.7760
32.7000
13.7054
747.3264
32.6500
18.2429
733.6210
32.5500
23.5499
715.3781
32.4100
6.7872
691.8282
32.2900
18.0734
685.0410
32.2400
24.3039
666.9676
32.1100
16.2178
642.6637
32.0200
13.6347
626.4459
31.9900
4.7321
612.8111
31.9100
24.5356
608.0790
31.8200
17.4383
583.5434
31.6900
24.7625
566.1051
31.6600
6.5302
541.3426
31.6000
4.8096
534.8125
31.5700
2.6904
530.0028
31.5400
0.4350
527.3125
31.5000
3.2719
526.8774
31.4800
4.1668
523.6055
31.4500
3.3298
519.4387
31.4100
0.8065
516.1089
31.3700
2.1364
515.3025
31.3400
3.7702
513.1660
31.3200
0.8148
509.3959
31.3100
3.0825
508.5811
31.2800
3.2299
505.4987
31.2700
3.5619
502.2688
31.2600
3.3143
498.7068
31.2500
2.7525
495.3925
31.2100
2.3376
492.6400
31.1800
4.4550
490.3024
31.1600
1.7523
485.8474
31.1200
4.7471
484.0951
31.0900
5.1609
479.3480
31.0500
0.6425
474.1871
31.0400
2.6829
473.5446
31.0100
3.1560
470.8617
30.9900
4.0365
467.7057
30.9800
2.3420
463.6693
30.9600
3.7226
461.3272
30.9200
1.5010
457.6047
30.9100
3.3047
456.1037
30.9000
3.3573
452.7989
30.8600
0.9786
449.4416
30.8300
4.0701
448.4630
30.8100
1.7291
444.3929
30.8000
1.5492
442.6638
30.7800
2.1852
441.1146
30.7400
1.5970
438.9294
30.7000
0.6075
437.3324
30.6700
2.3168
436.7249
30.6400
1.7999
434.4080
30.6200
0.9033
432.6082
30.6000
111.2365
431.7049
30.5700
99.80{3}4
320.4683
30.5600
109.0116
220.6683
30.5500
111.6567
111.6567
30.54
≈ 30.54
+ 0.00%
30.5300
129.5562
129.5562
30.5100
98.8984
228.4546
30.4900
0.6219
229.0765
30.4500
0.9539
230.0304
30.4200
2.8041
232.8345
30.3900
1.9806
234.8151
30.3500
2.7049
237.5201
30.3100
3.0644
240.5845
30.2600
1.3217
241.9062
30.2100
4.7319
246.6381
30.1800
2.1978
248.8359
30.1600
3.7629
252.5989
30.1300
4.4717
257.0706
30.0900
0.8805
257.9510
30.0400
1.6684
259.6194
30.0200
5.3952
265.0146
30.0000
1.0203
266.0349
29.9500
2.3661
268.4010
29.9200
4.4574
272.8584
29.9000
1.9638
274.8222
29.8700
1.5019
276.3240
29.8300
1.6044
277.9284
29.8100
4.3918
282.3202
29.7800
1.0014
283.3216
29.7600
4.7605
288.0820
29.7200
1.0{4}49
289.0821
29.6700
3.3046
292.3867
29.6400
2.0473
294.4340
29.6000
4.6922
299.1262
29.5900
3.2552
302.3814
29.5500
4.5841
306.9654
29.5300
0.9585
307.9239
29.5100
3.0403
310.9642
29.4900
2.1378
313.1020
29.4500
3.1475
316.2495
29.4300
5.1610
321.4106
29.4000
2.1573
323.5679
29.3600
1.9201
325.4879
29.3100
3.5615
329.0494
29.2600
3.9960
333.0454
29.2200
2.0100
335.0554
29.1900
2.9776
338.0330
29.1400
3.8455
341.8785
29.1000
3.3660
345.2445
29.0600
4.4335
349.6781
28.9900
7.6058
357.2839
28.9500
17.3266
374.6105
28.8100
12.5391
387.1496
28.7800
27.5694
414.7190
28.7100
14.6932
429.4122
28.6200
11.7252
441.1374
28.5800
1.9224
443.0598
28.4800
18.7781
461.8379
28.3400
13.4986
475.3365
28.2800
6.1378
481.4744
28.1500
22.5615
504.0359
28.0000
14.9746
519.0105
27.8900
21.0477
540.0582
27.8300
7.0440
547.1022
27.7000
2.4475
549.5496
27.6200
13.8198
563.3694
27.6100
25.4494
588.8188
1.0000
0.2500
589.0688
0.0300
33.3333
622.4021
0.0200
50.0000
672.4021
0.0100
250.0000
922.4021
价格
数量 (KSM)
累计 (KSM)
32.9000
2.1768
772.9527
32.8200
23.4496
770.7760
32.7000
13.7054
747.3264
32.6500
18.2429
733.6210
32.5500
23.5499
715.3781
32.4100
6.7872
691.8282
32.2900
18.0734
685.0410
32.2400
24.3039
666.9676
32.1100
16.2178
642.6637
32.0200
13.6347
626.4459
31.9900
4.7321
612.8111
31.9100
24.5356
608.0790
31.8200
17.4383
583.5434
31.6900
24.7625
566.1051
31.6600
6.5302
541.3426
31.6000
4.8096
534.8125
31.5700
2.6904
530.0028
31.5400
0.4350
527.3125
31.5000
3.2719
526.8774
31.4800
4.1668
523.6055
31.4500
3.3298
519.4387
31.4100
0.8065
516.1089
31.3700
2.1364
515.3025
31.3400
3.7702
513.1660
31.3200
0.8148
509.3959
31.3100
3.0825
508.5811
31.2800
3.2299
505.4987
31.2700
3.5619
502.2688
31.2600
3.3143
498.7068
31.2500
2.7525
495.3925
31.2100
2.3376
492.6400
31.1800
4.4550
490.3024
31.1600
1.7523
485.8474
31.1200
4.7471
484.0951
31.0900
5.1609
479.3480
31.0500
0.6425
474.1871
31.0400
2.6829
473.5446
31.0100
3.1560
470.8617
30.9900
4.0365
467.7057
30.9800
2.3420
463.6693
30.9600
3.7226
461.3272
30.9200
1.5010
457.6047
30.9100
3.3047
456.1037
30.9000
3.3573
452.7989
30.8600
0.9786
449.4416
30.8300
4.0701
448.4630
30.8100
1.7291
444.3929
30.8000
1.5492
442.6638
30.7800
2.1852
441.1146
30.7400
1.5970
438.9294
30.7000
0.6075
437.3324
30.6700
2.3168
436.7249
30.6400
1.7999
434.4080
30.6200
0.9033
432.6082
30.6000
111.2365
431.7049
30.5700
99.80{3}4
320.4683
30.5600
109.0116
220.6683
30.5500
111.6567
111.6567
30.54
≈ 30.54
+ 0.00%
价格
数量 (KSM)
累计 (KSM)
30.54
≈ 30.54
+ 0.00%
30.5300
129.5562
129.5562
30.5100
98.8984
228.4546
30.4900
0.6219
229.0765
30.4500
0.9539
230.0304
30.4200
2.8041
232.8345
30.3900
1.9806
234.8151
30.3500
2.7049
237.5201
30.3100
3.0644
240.5845
30.2600
1.3217
241.9062
30.2100
4.7319
246.6381
30.1800
2.1978
248.8359
30.1600
3.7629
252.5989
30.1300
4.4717
257.0706
30.0900
0.8805
257.9510
30.0400
1.6684
259.6194
30.0200
5.3952
265.0146
30.0000
1.0203
266.0349
29.9500
2.3661
268.4010
29.9200
4.4574
272.8584
29.9000
1.9638
274.8222
29.8700
1.5019
276.3240
29.8300
1.6044
277.9284
29.8100
4.3918
282.3202
29.7800
1.0014
283.3216
29.7600
4.7605
288.0820
29.7200
1.0{4}49
289.0821
29.6700
3.3046
292.3867
29.6400
2.0473
294.4340
29.6000
4.6922
299.1262
29.5900
3.2552
302.3814
29.5500
4.5841
306.9654
29.5300
0.9585
307.9239
29.5100
3.0403
310.9642
29.4900
2.1378
313.1020
29.4500
3.1475
316.2495
29.4300
5.1610
321.4106
29.4000
2.1573
323.5679
29.3600
1.9201
325.4879
29.3100
3.5615
329.0494
29.2600
3.9960
333.0454
29.2200
2.0100
335.0554
29.1900
2.9776
338.0330
29.1400
3.8455
341.8785
29.1000
3.3660
345.2445
29.0600
4.4335
349.6781
28.9900
7.6058
357.2839
28.9500
17.3266
374.6105
28.8100
12.5391
387.1496
28.7800
27.5694
414.7190
28.7100
14.6932
429.4122
28.6200
11.7252
441.1374
28.5800
1.9224
443.0598
28.4800
18.7781
461.8379
28.3400
13.4986
475.3365
28.2800
6.1378
481.4744
28.1500
22.5615
504.0359
28.0000
14.9746
519.0105
27.8900
21.0477
540.0582
27.8300
7.0440
547.1022
27.7000
2.4475
549.5496
27.6200
13.8198
563.3694
27.6100
25.4494
588.8188
1.0000
0.2500
589.0688
0.0300
33.3333
622.4021
0.0200
50.0000
672.4021
0.0100
250.0000
922.4021
最新成交
时间
价格(USDT)
数量(KSM)
05:59:04
30.5400
0.90{4}2
05:59:00
30.5500
0.4918
05:59:00
30.5500
0.2494
05:59:00
30.5500
0.4918
05:59:00
30.5600
0.5950
05:58:56
30.5600
0.5950
05:58:51
30.5700
0.5440
05:58:47
30.5600
0.4180
05:58:43
30.5600
0.5021
05:58:39
30.5700
0.3592
05:58:34
30.5700
0.9394
05:58:30
30.5700
0.3260
05:58:26
30.5600
0.6127
05:58:22
30.5500
0.4918
05:58:18
30.5600
0.5502
05:58:05
30.5700
0.7383
05:58:01
30.5700
0.6850
05:57:57
30.5800
0.5242
05:57:52
30.5800
0.9867
05:57:48
30.5700
0.7938
05:57:44
30.5600
0.4459
05:57:40
30.5600
0.3925
05:57:36
30.5600
0.5463
05:57:32
30.5600
0.6592
05:57:27
30.5600
0.6748
05:57:19
30.5500
0.8657
05:57:15
30.5500
0.2934
05:57:11
30.5400
0.6958
05:57:06
30.5400
0.5151
05:57:02
30.5700
0.2634
05:57:02
30.5700
0.0214
05:57:02
30.5700
0.2634
05:56:58
30.5800
0.4136
05:56:54
30.5700
0.6814
05:56:54
30.5700
0.2634
05:56:50
30.5700
0.2634
05:56:46
30.5800
0.9035
05:56:45
30.5900
0.9879
05:56:41
30.5900
0.9879
05:56:41
30.6000
0.5081
05:56:41
30.6000
0.0608
05:56:37
30.6000
0.4014
05:56:37
30.6000
0.1067
05:56:33
30.6000
0.4622
05:56:29
30.6100
0.3164
05:56:25
30.6100
0.6121
05:56:21
30.6000
0.5689
05:56:16
30.6100
0.7482
05:56:12
30.6200
0.0352
05:56:12
30.6200
0.4315
05:56:12
30.6200
0.1793
05:56:08
30.6200
0.3677
05:56:04
30.6200
0.3160
05:56:04
30.6200
0.1155
05:56:00
30.6200
0.6006
05:56:00
30.6200
0.2625
05:55:55
30.6200
0.7161
05:55:51
30.6300
0.4017
05:55:47
30.6200
0.9785
05:55:47
30.6300
0.3511
05:55:43
30.6300
0.3758
05:55:43
30.6300
0.3511
05:55:38
30.6300
0.3511
05:55:34
30.6400
0.4142
05:55:30
30.6400
0.4736
05:55:26
30.6500
0.3439
05:55:22
30.6600
4.2594
05:55:18
30.6300
0.4225
05:55:13
30.6200
0.2986
05:55:09
30.6200
0.5057
05:55:05
30.6300
0.2773
05:54:58
30.6300
0.8579
05:54:53
30.6400
0.5333
05:54:49
30.6300
0.5864
05:54:45
30.6300
0.2407
05:54:41
30.6200
0.7674
05:54:37
30.6200
0.4912
05:54:32
30.6300
0.3156
05:54:28
30.6200
0.3150
05:54:24
30.6100
0.6101
05:54:20
30.6200
0.6046
05:54:16
30.6100
0.4961
05:54:11
30.6200
0.4735
05:54:07
30.6100
0.0513
05:54:07
30.6100
0.5810
05:54:03
30.6300
0.4335
05:53:58
30.6400
0.4071
05:53:54
30.6400
0.2830
05:53:50
30.6300
0.6548
05:53:46
30.6400
0.4206
05:53:42
30.6300
0.6707
05:53:37
30.6200
0.7511
05:53:33
30.6200
0.7441
05:53:29
30.6200
0.3345
05:53:21
30.6200
0.4549
05:53:16
30.6100
0.5810
05:53:12
30.6200
0.3059
05:53:08
30.6200
0.9592
05:53:04
30.6200
0.9025
05:53:00
30.6100
0.3375
切换至币币交易